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Anti-Spam by CleanTalk < 6.91 - Unauthenticated Stored XSS via Comment Author Email

7.5HighCISA-ADP
Exploited
No known exploitation
Fix
Fixed in 6.91
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 6.91.

Published
Last modified
0.19% · 8th percentile
16/100 · provisional
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

The Anti-Spam, Spam FireWall by CleanTalk WordPress plugin before 6.91 does not escape a commenter-supplied value before outputting it on an administrative spam-review screen, allowing unauthenticated users to inject arbitrary web scripts that execute in the browser of an administrator who reviews flagged comments.

cve.now Index

16Pcve.now Index 16 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure7/25Reachable over the network without a login · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity8.5/10CVSS 7.5, total technical impact per CISA
  • No patch0/5No signal

What would change the score

  • Would score about 71 if added to CISA KEV
  • Would score about 66 if CISA's SSVC rates exploitation active
  • Would score about 31 if advisories confirm default setups are exposed

What to do

  • Upgrade to a fixed version: 6.91.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  4. Record last updated

Affected versions

  • Unknown Anti-Spam, Spam FireWall by CleanTalk

    fixed in 6.91

Evidence 1

  1. Exploit

Corrections

None so far.

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Questions about CVE-2026-115673

Is CVE-2026-115673 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-115673?

Anti-Spam, Spam FireWall by CleanTalk: before 6.91.Source: cve.now feed data

How do I fix CVE-2026-115673?

Upgrade to a fixed version: 6.91.Source: cve.now feed data