WP Super Cache < 1.7.3 - Authenticated Remote Code Execution

published 2021-06-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11226

cvss: 7.2; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 80%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

automattic wp_super_cache 1.7.3

Exploit prediction

1.95% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/2142c3d3-9a7f-4e3c-8776-d469a355d62f referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Automattic WP Super Cache

Classification

Weakness

CWE-94 Improper Control of Generation of Code
CWE-78 Improper Neutralization of Special Elements used in an OS Command

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/2142c3d3-9a7f-4e3c-8776-d469a355d62f
exploit, third-party-advisory

Sources

CVE List CVE-2021-24312
NVD CVE-2021-24312

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary