CVE-2026-88997
📛 CVE Title
JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key
Description
The JSM Show Post Metadata WordPress plugin before 4.9.1 does not properly escape a post meta key before outputting it into an inline event-handler attribute in an admin-facing meta box, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes in the session of a higher-privileged user who reviews the affected post.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- WPScan
- CVSS severity
- —
- CVSS score
- —
- CVSS vector
- —
- Effective score
- 6.8 / 10 MEDIUM source: NVD
- CWE(s)
-
CWE-79 Cross-Site Scripting (XSS) - Reserved
- 2026-09-10
- Published
- 2026-09-23 06:00 UTC
- Last updated
- 2026-09-23 10:53 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/88xxx/CVE-2026-88997.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
- 2026-09-23 06:17:04 UTC
- NVD last modified
- 2026-09-23 18:12:32 UTC
- NVD CVSS v3.1
- 6.8 / 10 MEDIUM source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H- Exploitability subscore
- 0.9 / 10
- Impact subscore
- 5.9 / 10
- EPSS score
- 0.0021 (probability of exploitation in next 30 days)
- EPSS percentile
- 11.22% vs all CVEs — higher = more likely to be exploited, as of 2026-09-23
NVD-assigned CWE(s):
CWE-79
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-09-24 04:31 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
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-2026-85052 - Assigner
- WPScan
- Published
- Sep 23, 2026, 6:00:21 AM
- Updated
- Sep 23, 2026, 10:53:26 AM
- EUVD base score (CVSS 3.1)
-
6.8 / 10
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H - EUVD-reported EPSS
- 0.2100
- Vendors
- Unknown
- Products
-
JSM Show Post Metadata (0 <4.9.1)
- Aliases
-
GHSA-w38r-xjmg-mmg7
ENISA description: The JSM Show Post Metadata WordPress plugin before 4.9.1 does not properly escape a post meta key before outputting it into an inline event-handler attribute in an admin-facing meta box, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes in the session of a higher-privileged user who reviews the affected post.
EUVD references (1)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Unknown | JSM Show Post Metadata |
0 (affected)
|
— |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
- https://wpscan.com/vulnerability/1699d3aa-29ca-4197-8e3b-0b03ecce751a/ exploitvdb-entrytechnical-description
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 (1)
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://wpscan.com/vulnerability/1699d3aa-29ca-4197-8e3b-0b03ecce751a/ contact@wpscan.com
Remediations (10)
-
web:blog.qualys.com
The August 2026 Microsoft Patch Tuesday release delivers security fixes for vulnerabilities affecting a wide range of Microsoft products and services.
2026-09-24 11:48 UTC -
web:docs.bell-sw.com
Description In the Linux kernel, the following vulnerability has been resolved: dm: fix resume-vs-remove race If the user issues the resume ioctl and the remove ioctl at the same time, it may be possible that the device is resumed after it is suspended in __dm_destroy. The result is that the table is destroyed without calling the postsuspend method. Dm targets expect that they may be removed ...
2026-09-24 11:48 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.
2026-09-24 11:48 UTC -
web:support.microsoft.com
Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...
2026-09-24 11:48 UTC -
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 ...
2026-09-24 11:48 UTC -
web:vulners.com
CVE - 2026 -83997 is a use-after-free vulnerability in Windows Message Queuing that allows an unauthorized attacker to achieve remote code execution over the network. The CNA-assigned CVSS 3.1 score is 8.1 (HIGH) , with a vector of AV:N/AC:H/PR:N/UI:...
2026-09-24 11:48 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's August 2026 Patch Tuesday, and with it comes security updates for a massive 400 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities.
2026-09-24 11:48 UTC -
web:www.cisecurity.org
<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...
2026-09-24 11:48 UTC -
web:www.computerworld.com
August's Patch Tuesday is a big one: 751 fixes, an exploited WinSock flaw and plenty of critical Windows, Office and Exchange issues.
2026-09-24 11:48 UTC -
web:www.rapid7.com
Microsoft is publishing 421 vulnerabilities on August 2026 Patch Tuesday, including 236 vulnerabilities in Windows. Rapid7 has disclosed the second in a two-part critical remote execution vulnerability chain in SharePoint.
2026-09-24 11:48 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-88997.json.
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