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Vulnerability · Published Sep 5, 2026 · Assigned by Wordfence

CVE-2026-77830Spam protection, Honeypot, Anti-Spam by CleanTalk <= 6.86 - Unauthenticated Stored Cross-Site Scripting via Comment Content aria-label Placeholder

High 7.2

In plain English

A high-severity cross-site scripting in Spam protection, Honeypot, Anti-Spam by CleanTalk from cleantalk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.5%top 58.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

The Spam protection, Honeypot, Anti-Spam by CleanTalk plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content aria-label Placeholder in all versions up to, and including, 6.86 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is deliverable via unauthenticated comment submission and executes exclusively for non-logged-in visitors; if comment moderation is enabled, an approving moderator must first publish the comment before the script reaches other users.

Affected products (as reported)

VendorProductVersions
cleantalk Spam protection, Honeypot, Anti-Spam by CleanTalk 0 – through 6.86

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References