WordPress security changelog
HIGH CVE-2021-24312 Modified

settings of WP Super Cache: A security weakness

settings of WP Super Cache is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 7.2 CVSS · contact@wpscan.com
NVD score 7.2 CVSS 3.1 · nvd@nist.gov
Component
settings of WP Super Cache
Plugin slug
wp-super-cache
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Jun 01, 2021
Weakness
CWE-94 — Improper Control of Generation of Code ('Code Injection')
CWE-78 — Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

This CVE was published Jun 01, 2021 and is one of 6 known issues for this plugin.

Update, patch or deactivate.

Update settings of WP Super Cache to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The parameters $cache_path, $wp_cache_debug_ip, $wp_super_cache_front_page_text, $cache_scheduled_time, $cached_direct_pages used in the settings of WP Super Cache WordPress plugin before 1.7.3 result in RCE because they allow input of '$' and '\n'. This is due to an incomplete fix of CVE-2021-24209.

NVD vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary and upstream sources