CVE-2026-19855: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in CleanTalk
The CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being passed to WordPress's shortcode engine, allowing any visitor to have arbitrary shortcodes registered on the site executed server-side and rendered to every subsequent visitor of the page.
CVE-2026-19855: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in CleanTalk
Description
The CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being passed to WordPress's shortcode engine, allowing any visitor to have arbitrary shortcodes registered on the site executed server-side and rendered to every subsequent visitor of the page.
CVSS v3.1
Score 6.5medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-14T09:43:54.757Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa0fec2acd9273b49e19aa1
Added to database: 09/09/2026, 06:37:54 UTC
Last updated: 09/09/2026, 06:37:54 UTC
Views: 1
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