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CVE-2021-24979

31
FAUCET Score

CVE-2021-24979 describes a Reflected Cross-Site Scripting (XSS) vulnerability in the Paid Memberships Pro WordPress plugin prior to version 2.6.6. This flaw allows an attacker to inject malicious scripts into a user's browser due to improper escaping of the 's' parameter in an admin page. Rated as Medium severity (CVSS 6.1), it requires user interaction and could lead to information disclosure or defacement. While no active exploitation or Metasploit modules are reported, a Nuclei template exists, and there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.6CPE matchmatch criteria
cpe:2.3:a:strangerstudios:paid_memberships_pro:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.87%
Probability of exploitation in next 30 days
EPSS Percentile
77.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-24979 · Oct 17, 2023
This CVE's current EPSS score of 0.0187 is in the 88th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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

plugins.trac.wordpress.org / changeset/2632369/paid-memberships-pro/tags/2.6.6/adminpages/discountcodes.php
PatchThird Party Advisory
wpscan.com / vulnerability/fc011990-4ec1-4553-901d-4ff1f482cb79
ExploitPatchThird Party Advisory