What’s Vulnerable › Vulnerabilities

CVE-2021-40658

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-06-14 · updated 2026-06-17
• Weakness: CWE-79

Description

Textpattern 4.8.7 is affected by a HTML injection vulnerability through “Content>Write>Body”.

Affected products

• TextPattern CMS: 4.8.7

References

• https://tanmay26.medium.com/textpattern-4-8-7-is-affected-by-html-injection-in-the-body-parameter-1a7be2441b70
• https://tanmay26.medium.com/textpattern-4-8-7-is-affected-by-html-injection-in-the-body-parameter-1a7be2441b70

Get alerted when CVE-2021-40658 or the next vulnerability affects your stack