How severe is GHSA-862m-5253-832r?

No CVSS score has been assigned to GHSA-862m-5253-832r yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-862m-5253-832r?

GHSA-862m-5253-832r affects the following packages: auth0/wordpress (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-862m-5253-832r?

Update auth0/wordpress to 5.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-862m-5253-832r is resolved across your whole dependency graph.

How do I detect GHSA-862m-5253-832r in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for auth0/wordpress. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-862m-5253-832r if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-862m-5253-832r?

O3 pinpoints whether GHSA-862m-5253-832r is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-862m-5253-832r actively exploited in the wild?

No public exploit code has been indexed for GHSA-862m-5253-832r yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-862m-5253-832r published, and has it been updated?

GHSA-862m-5253-832r was published on June 5, 2025 and was last updated on February 4, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

GHSA-862m-5253-832r

GHSA-862m-5253-832r is a remote code execution vulnerability in auth0/wordpress. O3 Security confirms whether GHSA-862m-5253-832r is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Auth0 Wordpress Plugin vulnerable to Deserialization of Untrusted Data

Published

Jun 5, 2025

Updated

Feb 4, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Blast Radius

1 pkg affected

🐘auth0/wordpress

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Overview The Auth0 Wordpress plugin contains a critical vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data.

Am I Affected? You are affected by this vulnerability if you meet the following preconditions:

Applications using the Auth0 WordPress plugin, versions between 5.0.0 BETA-0 to 5.0.1.
Auth0 WordPress plugin uses the Auth0-PHP SDK with version 8.0.0-BETA3 to 8.3.0.

Fix Upgrade the Auth0 WordPress plugin to the latest version (v5.3.0).

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`auth0/wordpress`	≥ 5.0.0-BETA0&&< 5.1.0	5.1.0

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for auth0/wordpress. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update auth0/wordpress to 5.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-862m-5253-832r is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-862m-5253-832r is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-862m-5253-832r. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

**Overview** The Auth0 Wordpress plugin contains a critical vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data. **Am I Affected?** You are affected by this vulnerability if you meet the following preconditions: 1. Applications using the Auth0 WordPress plugin, versions between 5.0.0 BETA-0 to 5.0.1. 2. Auth0 WordPress plugin uses the Auth0-PHP SDK with version 8.0.0-BETA3 to 8.3.0. **Fix** Upgrade the Auth0 WordPr

O3 Security · Impact-Aware SCA

Is GHSA-862m-5253-832r in your dependencies?

O3 detects GHSA-862m-5253-832r across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works