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CVE-2025-4587

18
FAUCET Score

CVE-2025-4587 describes a stored cross-site scripting (XSS) vulnerability in the A/B Testing for WordPress plugin, affecting all versions up to and including 1.18.2. This flaw allows authenticated attackers with contributor-level access or higher to inject malicious web scripts into pages via the 'ab-test-block' block's 'id' parameter, which then execute when a user views the compromised page. The vulnerability has a CVSS score of 6.4 (Medium), indicating a moderate risk with low attack complexity and potential for limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
JohnjamesjacobyA/B Testing For WordPress
>= 0, <= 1.18.2CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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

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

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
8.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 5th percentile among its peer group of 21,974 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 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wordpress.org / plugins/ab-testing-for-wp
wordfence.com / threat-intel/vulnerabilities/id/3dcf401a-3b91-4b55-b6b1-a132ec195607