What’s Vulnerable › Vulnerabilities

CVE-2021-40642

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-06-29 · updated 2026-06-17
• Weakness: CWE-311

Description

Textpattern CMS v4.8.7 and older vulnerability exists through Sensitive Cookie in HTTPS Session Without 'Secure' Attribute via textpattern/lib/txplib_misc.php. The secure flag is not set for txp_login session cookie in the application. If the secure flag is not set, then the cookie will be transmitted in clear-text if the user visits any HTTP URLs within the cookie's scope. An attacker may be able to induce this event by feeding a user suitable links, either directly or via another web site.

Affected products

• TextPattern CMS: through 4.8.7

References

• https://github.com/textpattern/textpattern/commit/211fab0093999f59b0b61682aa988ac7d8337aa9
• https://www.huntr.dev/bounties/aadbe434-a376-443b-876f-2a1cbab7847b/
• https://github.com/textpattern/textpattern/commit/211fab0093999f59b0b61682aa988ac7d8337aa9
• https://www.huntr.dev/bounties/aadbe434-a376-443b-876f-2a1cbab7847b/

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