CVE-2026-120851: Missing Authorization vulnerability in PublishPress PublishPress Revisions revisionary allows Exploiting Incor

Q: How do I fix CVE-2026-120851?

publishpress revisions: upgrade to newer than 4.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-120851 being exploited?

CVE-2026-120851 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-2026-120851 affect?

CVE-2026-120851 affects publishpress revisions. Severity is medium (CVSS 4.3). Missing Authorization vulnerability in PublishPress PublishPress Revisions revisionary allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects PublishPress Revisions: from n/a through 4.2.0.

Q: How urgent is CVE-2026-120851?

Priority 15/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2026-120851 is a medium-severity flaw (CVSS 4.3) affecting publishpress revisions. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing Authorization vulnerability in PublishPress PublishPress Revisions revisionary allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects PublishPress Revisions: from n/a through 4.2.0.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-862
Published	2026-11-06
Last modified	2026-11-06

Publisher (CNA): Patchstack · Vendor: publishpress · Source: CVE Program record (NVD analysis pending)

Last updated 2026-11-06 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-11-06 22:29 UTCPublished CVE record published
2026-11-06 22:29 UTCUpdated Record last modified

publishpress publishpress revisions UPGRADE

Affected: <= 4.2.0

Fixed in: newer than 4.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy publishpress-revisions || rpm -q publishpress-revisions || publishpress-revisions --version

2. UPGRADE to newer than 4.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade publishpress-revisions

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade publishpress-revisions

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-2026-120851?

publishpress revisions: upgrade to newer than 4.2.0. Exact commands for each OS are on this page.

Is CVE-2026-120851 being exploited?

CVE-2026-120851 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-2026-120851 affect?

CVE-2026-120851 affects publishpress revisions. Severity is medium (CVSS 4.3). Missing Authorization vulnerability in PublishPress PublishPress Revisions revisionary allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects PublishPress Revisions: from n/a through 4.2.0.

How urgent is CVE-2026-120851?

Priority 15/100. No elevated risk signals yet.

References

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