CVE-2026-122670: Missing Authorization vulnerability in WP SYNTEX Polylang polylang allows Exploiting Incorrectly Configured Ac

Q: How do I fix CVE-2026-122670?

polylang: upgrade to newer than 3.9. Exact commands for each OS are on this page.

Q: Is CVE-2026-122670 being exploited?

CVE-2026-122670 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-2026-122670 affect?

CVE-2026-122670 affects polylang. Severity is medium (CVSS 5.4). Missing Authorization vulnerability in WP SYNTEX Polylang polylang allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Polylang: from n/a through 3.9.

Q: How urgent is CVE-2026-122670?

Priority 19/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2026-122670 is a medium-severity flaw (CVSS 5.4) affecting polylang. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing Authorization vulnerability in WP SYNTEX Polylang polylang allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Polylang: from n/a through 3.9.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (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: wp syntex · 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 22:28 UTCPublished CVE record published
2026-11-06 22:28 UTCUpdated Record last modified

wp syntex polylang UPGRADE

Affected: <= 3.9

Fixed in: newer than 3.9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy polylang || rpm -q polylang || polylang --version

2. UPGRADE to newer than 3.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade polylang

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade polylang

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-2026-122670?

polylang: upgrade to newer than 3.9. Exact commands for each OS are on this page.

Is CVE-2026-122670 being exploited?

CVE-2026-122670 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-2026-122670 affect?

CVE-2026-122670 affects polylang. Severity is medium (CVSS 5.4). Missing Authorization vulnerability in WP SYNTEX Polylang polylang allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Polylang: from n/a through 3.9.

How urgent is CVE-2026-122670?

Priority 19/100. No elevated risk signals yet.

Related CVEs

CVE-2014-4855 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in the Polylang plugin before 1.5.2 for WordPress allows remote attac

References

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