CVE-2026-124412: Slim SEO (WordPress plugin) · Basic XSS
Affects Slim SEO (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 4.3 Medium : upgrade to 4.11.6 when convenient.
Data as of 13 Nov 2026, 15:06 UTC
Thin evidence
One scorer or none| CNA (Patchstack) | CVSS 3.1 | 4.3 |
|---|
- Patch
- Available – fixed in 4.11.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade Slim SEO (WordPress plugin) to 4.11.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Slim SEOslim-seo | Affected
| Fixed in
|
AI-suggested
Upgrade the Slim SEO plugin to version 4.11.6 or later, where this vulnerability has been fixed. No other mitigation actions are specifically required as the issue is resolved in the official update.
Description
CVE-2026-124412 is a cross-site scripting (XSS) vulnerability in the eLightUp Slim SEO plugin. It involves improper neutralization of script-related HTML tags, allowing code injection. This affects Slim SEO versions from initial releases up to 4.11.5. The issue is fixed in version 4.11.6.