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VulnerabilityPublished

CVE-2026-28143: Forminator · Unauthenticated Cross Site Scripting (XSS)

Source GCVE Database

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Authoritative record:CVE-2026-28143· High 7.1

Not known to be exploited · CVSS 7.1 High.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
WPMU DEVForminatorAffected
  • ≥ n/a, < 1.56.1
Fixed in–

AI-suggested

Until a patch is available, consider applying web application firewalls or input validation controls to mitigate potential exploitation. Monitor official vendor channels for updates.

Description

An unauthenticated Cross Site Scripting (XSS) vulnerability exists in Forminator versions up to and including 1.56.0. This vulnerability allows an attacker to inject malicious scripts without authentication, potentially impacting confidentiality, integrity, and availability. The vulnerability has a high severity score of 7.1 according to CVSS 3.1. No specific patch or remediation information is provided in the available data.

References

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