CVE-2026-95813

Description

e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site.

Overview

State: PUBLISHED
Assigner (CNA): VulnCheck
CVSS severity: MEDIUM
CVSS score: 5.3 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Effective score: 5.3 / 10 MEDIUM source: CNA overview
CWE(s): CWE-601
Reserved: 2026-09-22
Published: 2026-09-22 20:21 UTC
Last updated: 2026-09-22 20:21 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/95xxx/CVE-2026-95813.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 21:17:34 UTC
NVD last modified: 2026-09-22 21:17:34 UTC
NVD CVSS v3.1: 6.1 / 10 MEDIUM source: disclosure@vulncheck.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Exploitability subscore: 2.8 / 10
Impact subscore: 2.7 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84860
Assigner: VulnCheck
Published: Sep 22, 2026, 8:21:11 PM
Updated: Sep 22, 2026, 8:21:11 PM
EUVD base score (CVSS 4.0): 5.3 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EUVD-reported EPSS: 0.0000
Vendors: e621ng
Products: e621ng (0 <26.09.16)
Aliases: GHSA-7r53-6357-gf8f

ENISA description: e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site.

EUVD references (6)

Affected products (1)

Vendor	Product	Versions	Platforms
e621ng	e621ng	`0` (affected), `26.09.16` (unaffected)	—

Vendor references (6)

References embedded in the original CVE record by the assigning CNA.

Pull Request #2518 patchissue-tracking
Patch Commit patch
e621ng 26.09.16 Release Notes release-notes
PaginatorComponent#nav_params_for at 26.09.02 technical-description
https://github.com/e621ng/e621ng product
VulnCheck Advisory: e621ng before 26.09.16 Open Redirect via URL Parameters third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (6)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/e621ng/e621ng disclosure@vulncheck.com
https://github.com/e621ng/e621ng/blob/26.09.02/app/components/paginator_component.rb disclosure@vulncheck.com
https://github.com/e621ng/e621ng/commit/e1a3930bf1750b02a23843ec88c33e2aa06e2a5e disclosure@vulncheck.com
https://github.com/e621ng/e621ng/pull/2518 disclosure@vulncheck.com
https://github.com/e621ng/e621ng/releases/tag/26.09.16 disclosure@vulncheck.com
https://www.vulncheck.com/advisories/e621ng-before-26.09.16-open-redirect-via-url-parameters disclosure@vulncheck.com

Remediations (10)

July 2026 Critical Patch Update Released | security - Oracle Blogs

web:blogs.oracle.com

For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

2026-09-23 15:40 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-23 15:40 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-23 15:40 UTC
July 18, 2026—Hotpatch KB5121768 (OS Builds 26200.8893 and 26100.8893 ...

web:support.microsoft.com

This out-of-band (OOB) update for Windows 11, version 25H2 and Windows 11, version 24H2 (KB5121768) is cumulative. It includes all improvements from previous security and non-security updates, along with an additional fix . Improvements This OOB update includes the following improvement: [System Performance] This update addresses an issue affecting a limited number of devices with an Intel ...

2026-09-23 15:40 UTC
March 13, 2026—Hotpatch KB5084597 (OS Builds 26200.7982 and 26100.7982 ...

web:support.microsoft.com

This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...

2026-09-23 15:40 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Help protect your computing environment by keeping up to date on Microsoft technical security notifications. Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed. You can choose the type of ...

2026-09-23 15:40 UTC
The 8 Best Automated Vulnerability Remediation Tools in 2026

web:www.openhands.dev

Compare 8 automated vulnerability remediation tools for 2026 on fixes, prioritization, integrations, and deployment control.

2026-09-23 15:40 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-23 15:40 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-09-23 15:40 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-23 15:40 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-95813.json.

{
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        {
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          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/e621ng/e621ng",
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          "repo": "https://github.com/e621ng/e621ng",
          "vendor": "e621ng",
          "versions": [
            {
              "lessThan": "26.09.16",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
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          "value": "Zian F. do Vale"
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      "descriptions": [
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          "value": "e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site."
        }
      ],
      "metrics": [
        {
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            "attackRequirements": "NONE",
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            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
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            "confidentialityImpact": "LOW",
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            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
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        }
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-601",
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            }
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      "providerMetadata": {
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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          "name": "Pull Request #2518",
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        },
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        },
        {
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        },
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          "tags": [
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          ],
          "url": "https://github.com/e621ng/e621ng"
        },
        {
          "name": "VulnCheck Advisory: e621ng before 26.09.16 Open Redirect via URL Parameters",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/e621ng-before-26.09.16-open-redirect-via-url-parameters"
        }
      ],
      "title": "e621ng before 26.09.16 Open Redirect via URL Parameters",
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        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-95813",
    "datePublished": "2026-09-22T20:21:11.309Z",
    "dateReserved": "2026-09-22T15:47:13.293Z",
    "dateUpdated": "2026-09-22T20:21:11.309Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}