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CVE-2026-8846

Tuxquote <= 1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Published: May 27, 2026Updated: May 27, 2026 Sources: CVE List NVD
NVD MITRE
6.4CVSS
MEDIUM

The Tuxquote plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'TUXQUOTE' shortcode in versions up to, and including, 1.3. This is due to insufficient input sanitization and output escaping on user supplied attributes ('title', 'align', and 'width') in the tuxquote_build_format() function, which are concatenated into the rendered HTML without being passed through esc_attr() or esc_html(). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

CWE-79

Affected Products

Tuxquote
eldougo

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://plugins.trac.wordpress.org/browser/tuxquote/tags/1.3/tuxquote.php#L81
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/tuxquote/tags/1.3/tuxquote.php#L91
plugins.trac.wordpress.org
https://www.wordfence.com/threat-intel/vulnerabilities/id/7ea6079f-45a1-438f-890f-36457b7468ec?source=cve
wordfence.com

Timeline

Published
May 27, 2026
Last Updated
May 27, 2026

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