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

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