PHP object injection in Drupal Block AJAX
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-915.
Summary
Block AJAX for Drupal, from 0.0.0 before 3.0.2, contains an improperly controlled modification of dynamically-determined object attributes (CWE-915) that allows PHP object injection. An unauthenticated remote attacker can send crafted input that makes the site unserialize attacker-controlled objects, which can lead to a complete compromise of confidentiality, integrity and availability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-30
Description from the CNA
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Block AJAX allows Object Injection. This issue affects Block AJAX versions: from 0.0.0 to 3.0.2.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update Drupal Block AJAX to version 3.0.2 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-30
- Fix · CNA Block AJAX (Drupal) Fixed in 3.0.2
Timeline
- 2026-10-30 Threatist record created from CVE-2026-107249
- 2026-10-30 Alias added: GHSA-6pcx-w9cj-f597
- 2026-10-30 CVSS score added · CISA ADP
- 2026-10-30 CISA SSVC decision points changed
- 2026-10-30 Priority changed: LOW → MEDIUM
References
More Drupal vulnerabilities
- TI-2026-07979 Drupal core - Highly critical - SQL injection - SA-CORE-2026-004 KEVCVSS 3.1CRITICAL 9.8
- TI-2018-05494 Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004 KEVCVSS 3.1CRITICAL 9.8
- TI-2018-05493 Improper input validation in Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-10731 Unrestricted file upload in Drupal Core KEVCVSS 3.1HIGH 8.8
- TI-2019-04505 Drupal core - Highly critical - Remote Code Execution KEVCVSS 3.1HIGH 8.1
- TI-2020-17477 Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks… KEVCVSS 3.1HIGH 7.8
Sources
- CVE-2026-107249 · CVE Program
- CVE-2026-107249 · NVD
- FIRST EPSS
- GHSA-6pcx-w9cj-f597 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences