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CVE-2026-34917

MEDIUM
4.3
CVSS Score
Published: June 23, 2026 at 04:14 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorAdserver

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Low‑privileged session IDs generated for the web admin console could be reused in the XML‑RPC API, whose authentication is normally restricted to admin users. An attacker could leverage this to gain unauthorised access and exploit API‑level vulnerabilities. The session context (web/API) is now recorded along with other session data, preventing session IDs from being used interchangeably.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Adserver· Revive
90%
v ≤ 6.0.6

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://hackerone.com/reports/3672641

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMhackerone
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-287

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