CVE-2025-51529: Incorrect Access Control in the AJAX endpoint functionality in jonkastonka Cookies and Content Security Policy

Q: How do I fix CVE-2025-51529?

cookies and content security policy: upgrade to newer than 2.29. Exact commands for each OS are on this page.

Q: Is CVE-2025-51529 being exploited?

CVE-2025-51529 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-51529 affect?

CVE-2025-51529 affects cookies and content security policy. Severity is medium (CVSS 5.3). Incorrect Access Control in the AJAX endpoint functionality in jonkastonka Cookies and Content Security Policy plugin through version 2.29 allows remote attackers to cause a denial of service (database server resource exhaustion) via unlimi

Q: How urgent is CVE-2025-51529?

Priority 38/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2025-51529 is a medium-severity flaw (CVSS 5.3) affecting cookies and content security policy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incorrect Access Control in the AJAX endpoint functionality in jonkastonka Cookies and Content Security Policy plugin through version 2.29 allows remote attackers to cause a denial of service (database server resource exhaustion) via unlimited database write operations to the wp_ajax_nopriv_cacsp_insert_consent_data endpoint.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-08-19
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: followmedarling

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-19 15:15 UTCPublished CVE record published
2026-07-05 17:17 UTCUpdated Record last modified

followmedarling cookies and content security policy UPGRADE

Affected: <= 2.29

Fixed in: newer than 2.29

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cookies-and-content-security-policy || rpm -q cookies-and-content-security-policy || cookies-and-content-security-policy --version

2. UPGRADE to newer than 2.29 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cookies-and-content-security-policy

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cookies-and-content-security-policy

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-51529?

cookies and content security policy: upgrade to newer than 2.29. Exact commands for each OS are on this page.

Is CVE-2025-51529 being exploited?

CVE-2025-51529 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-51529 affect?

CVE-2025-51529 affects cookies and content security policy. Severity is medium (CVSS 5.3). Incorrect Access Control in the AJAX endpoint functionality in jonkastonka Cookies and Content Security Policy plugin through version 2.29 allows remote attackers to cause a denial of service (database server resource exhaustion) via unlimi

How urgent is CVE-2025-51529?

Priority 38/100. Public exploit reference; Remotely exploitable, no login, no user action

References

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