CVE-2026-1931

High

Published: 18 February 2026

Published

18 February 2026

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS Score 0.0006 18.2th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-1931 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Wordpress (inferred from references). Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 18.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).

Deeper analysis

CVE-2026-1931 is a stored cross-site scripting (XSS) vulnerability in the Rent Fetch plugin for WordPress, affecting all versions up to and including 0.32.4. The flaw stems from insufficient input sanitization and output escaping of the 'keyword' parameter, allowing arbitrary web scripts to be injected into pages. Published on 2026-02-18, it has a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N) and is associated with CWE-79 (Cross-Site Scripting).

Unauthenticated attackers can exploit this vulnerability remotely with low complexity and no user interaction required. By submitting malicious payloads via the 'keyword' parameter, they can store scripts on affected pages, which then execute in the context of any user's browser when those pages are accessed. This enables potential theft of sensitive data, session hijacking, or further site compromise, with impacts on confidentiality and integrity due to the changed scope.

Mitigation involves updating the Rent Fetch plugin beyond version 0.32.4, as indicated by the fix commit at https://github.com/BrindleDigital/rentfetch/commit/3c7162b24a8be5e5399c1a5bbaf0b949127aca75 and code changes in WordPress plugin trac repositories. Additional details are available in the Wordfence threat intelligence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/3fffdda5-91ed-4b79-bc04-77a1c44e3b67?source=cve. Security practitioners should scan WordPress sites using this plugin and apply patches promptly.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-7926

Vulnerability details

The Rent Fetch plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'keyword' parameter in all versions up to, and including, 0.32.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible…

for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CWE(s): CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1189 Drive-by Compromise Initial Access

Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.

attack.mitre.org →

Why these techniques?

Stored XSS in public-facing WordPress plugin directly enables remote exploitation of web app (T1190) and facilitates drive-by script execution in victim browsers (T1189).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1