How severe is CVE-2011-2687?

No CVSS score has been assigned to CVE-2011-2687 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2011-2687?

CVE-2011-2687 affects the following packages: drupal/core (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2011-2687?

Update drupal/core to 7.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2011-2687 is resolved across your whole dependency graph.

How do I detect CVE-2011-2687 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for drupal/core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2011-2687 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.

Is CVE-2011-2687 actively exploited in the wild?

No public exploit code has been indexed for CVE-2011-2687 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.

What is the EPSS score for CVE-2011-2687?

CVE-2011-2687 has an EPSS (Exploit Prediction Scoring System) score of 3.1%, placing it in the 88th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2011-2687?

CVE-2011-2687 is classified as CWE-264 (CWE-264). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2011-2687 published, and has it been updated?

CVE-2011-2687 was published on May 17, 2022 and was last updated on January 19, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

Not in CISA KEV

CVE-2011-2687 — core

CVE-2011-2687 is a CWE-264 vulnerability in drupal/core. A fix is available for drupal/core — see the affected versions and patch details below.

Drupal Access Control Bypass

Published

May 17, 2022

Updated

Jan 19, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 31, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

3.1%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs88th percentile — riskier than 88% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐘drupal/core

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

Drupal 7.x before 7.3 allows remote attackers to bypass intended node_access restrictions via vectors related to a listing that shows nodes but lacks a JOIN clause for the node table.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`drupal/core`	≥ 7.0&&< 7.3	7.3`composer require drupal/core:^7.3`

Affected Products

1 product · 18 configurations

Application

drupaldrupal

3 versions

7.07.17.2

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for drupal/core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update drupal/core to 7.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2011-2687 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.

Frequently Asked Questions

Drupal 7.x before 7.3 allows remote attackers to bypass intended `node_access` restrictions via vectors related to a listing that shows nodes but lacks a JOIN clause for the node table.

O3 Security · Impact-Aware SCA

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