WP Super Cache <= 1.7.2 — Authenticated Remote Code Execution
CVE-2021-24312Published · Updated Action summary
Affected: <1.7.3Update to 1.7.3 or newer
All remediation steps- Severity
- High7.2
- CVSS
- 7.2CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:HPrivileges required- High
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WP Super Cache wp-super-cache
- Affected< 1.7.3
- Patched in1.7.3
Update to 1.7.3 or newer.
You are affected if you run < 1.7.3. Version 1.7.3 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Super Cache.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 1.7.3, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WP Super Cache to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to NGA.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in WP Super Cache
All 12| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Unauthenticated Cache Poisoning ≤1.8Update to 1.9 | — | |
| Medium4.8 | Authenticated (Admin+) Stored Cross-Site Scripting <1.7.3Update to 1.7.3 | CVE-2021-24329 | |
| High7.2 | Authenticated (Admin+) Remote Code Execution <1.7.2Update to 1.7.2 | CVE-2021-24209 | |
| Medium5.3 | Cross-Site Scripting ≤1.4.8Update to 1.4.9 | — | |
| Medium5.4 | Authenticated File Deletion <1.4.5Update to 1.4.5 | — |
- Medium6.5Unauthenticated Cache Poisoning
≤1.8Update to 1.9
- Medium4.8Authenticated (Admin+) Stored Cross-Site Scripting
<1.7.3Update to 1.7.3
- High7.2Authenticated (Admin+) Remote Code Execution
<1.7.2Update to 1.7.2
- Medium5.3Cross-Site Scripting
≤1.4.8Update to 1.4.9
- Medium5.4Authenticated File Deletion
<1.4.5Update to 1.4.5
Timeline
CVE published
Severity high, CVSS 7.2
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.