CVE-2026-116858: Forminator (WordPress plugin) · Basic XSS
Affects Forminator (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 4.3 Medium : upgrade to 1.58.4 when convenient.
Data as of 3 Nov 2026, 17:13 UTC
Thin evidence
One scorer or none| CNA (Patchstack) | CVSS 3.1 | 4.3 |
|---|
- Patch
- Available – fixed in 1.58.4
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 3 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 3 Nov 2026.
What to do
Upgrade Forminator (WordPress plugin) to 1.58.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Forminatorforminator | Affected
| Fixed in
|
AI-suggested
Upgrade Forminator to version 1.58.4 or later, where this vulnerability has been fixed. No other mitigation or temporary workaround is indicated by the vendor advisory.
Description
CVE-2026-116858 is a medium severity vulnerability in WPMU DEV Forminator plugin versions before 1.58.4. It involves improper neutralization of script-related HTML tags, leading to a basic cross-site scripting (XSS) issue that allows code injection. The vulnerability affects Forminator versions from the initial release up to 1.58.3 and was fixed in version 1.58.4.