Cross-site scripting in Adform server-side backend for Site Tracking
Priority LOW 34CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting, Code execution
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-77.
Summary
The server-side backend for Adform Site Tracking before 2025-08-28 allows attackers to inject HTML or execute arbitrary code via cookie hijacking. NOTE: a customer does not need to take any action to update locally installed software (such as Adform Site Tracking 1.1).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00423 36th percentileScored 2026-11-07
Fix Fixed server-side backend for Site Tracking (Adform): 2025-08-28
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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
- Fix · CNA server-side backend for Site Tracking (Adform) Fixed in 2025-08-28
Timeline
- 2026-10-02 Threatist record created from CVE-2025-50891
- 2026-10-03 Alias added: GHSA-87jv-7r2h-c6wf
References
Sources
- CVE-2025-50891 · CVE Program
- CVE-2025-50891 · NVD
- FIRST EPSS
- GHSA-87jv-7r2h-c6wf · GitHub Advisory Database · CC BY 4.0
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