CVE-2015-5501
CVE-2015-5501 is a high-severity vulnerability in Aegirproject Hostmaster with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-254.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-254
- Affected product: Aegirproject Hostmaster
- Published:
- Last modified:
Description
The Hostmaster (Aegir) module 6.x-2.x before 6.x-2.4 and 7.x-3.x before 7.x-3.0-beta2 for Drupal allows remote attackers to execute arbitrary PHP code via a crafted file in the directory used to write Apache vhost files for hosted sites in a multi-site environment.
Frequently asked questions
- What is CVE-2015-5501?
- The Hostmaster (Aegir) module 6.x-2.x before 6.x-2.4 and 7.x-3.x before 7.x-3.0-beta2 for Drupal allows remote attackers to execute arbitrary PHP code via a crafted file in the directory used to write Apache vhost files for hosted sites in a multi-site environment.
- How severe is CVE-2015-5501?
- CVE-2015-5501 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2015-5501 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2015-5501?
- CVE-2015-5501 primarily affects Aegirproject Hostmaster. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2015-5501?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2015-5501 published?
- CVE-2015-5501 was published on 2015-08-18 and last updated on 2026-06-17.
References
- http://community.aegirproject.org/2.4
- http://community.aegirproject.org/3.0-beta2
- http://www.openwall.com/lists/oss-security/2015/07/04/4
- http://www.securityfocus.com/bid/74759
- https://www.drupal.org/node/2492317
Affected products (5)
- cpe:2.3:a:aegirproject:hostmaster:6.x-2.0:*:*:*:*:drupal:*:*
- cpe:2.3:a:aegirproject:hostmaster:6.x-2.1:*:*:*:*:drupal:*:*
- cpe:2.3:a:aegirproject:hostmaster:6.x-2.2:*:*:*:*:drupal:*:*
- cpe:2.3:a:aegirproject:hostmaster:6.x-2.3:*:*:*:*:drupal:*:*
- cpe:2.3:a:aegirproject:hostmaster:6.x-3.0:beta1:*:*:*:drupal:*:*
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