What’s Vulnerable › Vulnerabilities

CVE-2023-53911: Textpattern CMS 4.8.8 Authenticated Stored Cross-Site Scripting via Article Excerpt

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-17 · updated 2026-06-17
• Weakness: CWE-79

Description

Textpattern CMS 4.8.8 contains a stored cross-site scripting vulnerability in the article excerpt field that allows authenticated users to inject malicious scripts. Attackers can insert JavaScript payloads into the excerpt, which will execute when the article is viewed by other users.

Affected products

• TextPattern CMS: 4.8.8

References

• https://textpattern.com/
• https://www.exploit-db.com/exploits/51523
• https://www.vulncheck.com/advisories/textpattern-cms-authenticated-stored-cross-site-scripting-via-article-excerpt

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