CVE-2026-123529
📛 CVE Title
Vikunja before 2.7.1 Stored CSS Injection via TipTap Table Cell data-background-color
Description
Vikunja before 2.7.1 contains a stored CSS injection vulnerability that allows authenticated users with project write access to inject arbitrary CSS via unsanitized table-cell data-background-color attributes. Attackers can store crafted task descriptions or comments to render full-viewport phishing overlays or force zero-click outbound background-image requests that deanonymize viewers.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- VulnCheck
- CVSS severity
- MEDIUM
- CVSS score
- 5.1 / 10
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N- Effective score
- 5.1 / 10 MEDIUM source: CNA overview
- CWE(s)
-
CWE-1021 - Reserved
- 2026-11-06
- Published
- 2026-11-08 01:37 UTC
- Last updated
- 2026-11-08 01:37 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/123xxx/CVE-2026-123529.json
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-2026-119414
EUVD enrichment is queued; refresh the page in a few seconds.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| go-vikunja | vikunja |
0 (affected),
2.7.1 (unaffected)
|
— |
Vendor references (2)
References embedded in the original CVE record by the assigning CNA.
- GitHub Security Advisory (GHSA-p23m-cq25-pc4j) vendor-advisory
- VulnCheck Advisory: Vikunja before 2.7.1 Stored CSS Injection via TipTap Table Cell data-background-color 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.
Remediations (10)
-
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.
2026-11-08 11:27 UTC -
web:blogs.oracle.com
For more information about the Critical Security Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.
2026-11-08 11:27 UTC -
web:cvedatabase.com
Search and analyze CVE vulnerabilities with instant access to CVSS scores, affected products, and remediation guidance.
2026-11-08 11:27 UTC -
web:malware.news
Google specifically recommends sandboxing agentic workloads and moving to risk-based triage. How to Fix and Prioritize CVE 2026 Vulnerabilities Fix CVE-2026 vulnerabilities by patching exploited and internet-exposed systems first, applying vendor mitigations where a patch lags, and ranking everything else using CVSS, EPSS, and KEV together.
2026-11-08 11:27 UTC -
web:sec.cloudapps.cisco.com
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching ...
2026-11-08 11:27 UTC -
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.
2026-11-08 11:27 UTC -
web:source.android.com
This Section contains the available Android Security Bulletins, which provide fixes for possible issues affecting Android devices.
2026-11-08 11:27 UTC -
web:support.sap.com
On 13 th of October 2026 , SAP security patch day saw the release of 16 new security notes and 4 GitHub security advisories. There are 2 updates to previously released security notes.
2026-11-08 11:27 UTC -
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.
2026-11-08 11:27 UTC -
web:www.oracle.com
Prior Critical Patch Update and Critical Security Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to Critical Patch Updates, Critical Security Patch Updates, Security Alerts and Bulletins for information about Oracle Security advisories.
2026-11-08 11:27 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-123529.json.
{
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"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:golang/code.vikunja.io/api",
"product": "vikunja",
"vendor": "go-vikunja",
"versions": [
{
"lessThan": "2.7.1",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.7.1",
"versionType": "semver"
}
]
}
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"nodes": [
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"cpeMatch": [
{
"criteria": "cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*",
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"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
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"lang": "en",
"type": "reporter",
"value": "r1alfarraj"
}
],
"datePublic": "2026-10-22T00:00:00.000Z",
"descriptions": [
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}
],
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"baseScore": 5.1,
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"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
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"problemTypes": [
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"descriptions": [
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"description": "Improper Restriction of Rendered UI Layers or Frames",
"lang": "en",
"type": "CWE"
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"references": [
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"name": "GitHub Security Advisory (GHSA-p23m-cq25-pc4j)",
"tags": [
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],
"url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-p23m-cq25-pc4j"
},
{
"name": "VulnCheck Advisory: Vikunja before 2.7.1 Stored CSS Injection via TipTap Table Cell data-background-color",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/vikunja-before-2.7.1-stored-css-injection-via-tiptap-table-cell-data-background-color"
}
],
"title": "Vikunja before 2.7.1 Stored CSS Injection via TipTap Table Cell data-background-color",
"x_generator": {
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"cveId": "CVE-2026-123529",
"datePublished": "2026-11-08T01:37:37.674Z",
"dateReserved": "2026-11-06T00:48:01.381Z",
"dateUpdated": "2026-11-08T01:37:37.674Z",
"state": "PUBLISHED"
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