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CVE-2021-24160

29
FAUCET Score

CVE-2021-24160 is a critical arbitrary file upload vulnerability affecting the Responsive Menu (free and Pro) WordPress plugins prior to version 4.0.4. This flaw allows authenticated subscribers to upload malicious PHP files within zip archives, which are then extracted to a publicly accessible directory. With a CVSS score of 8.8 (High), this vulnerability enables remote code execution, granting attackers full control over the compromised WordPress site. While no active exploitation, public exploit code, or significant community discussion has been observed, the high EPSS score and FAUCET Risk Score indicate a significant potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.4CPE matchmatch criteria
cpe:2.3:a:expresstech:responsive_menu:*:*:*:*:free:wordpress:*:*
< 4.0.4CPE matchmatch criteria
cpe:2.3:a:expresstech:responsive_menu:*:*:*:*:pro:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.20%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0820 is in the 93rd percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wpscan.com / vulnerability/066ba5d4-4aaa-4462-b106-500c1f291c37
ExploitThird Party Advisory
wordfence.com / blog/2021/02/multiple-vulnerabilities-patched-in-responsive-menu-plugin
ExploitThird Party Advisory