PT-2025-51235 · Unknown · Convercent Whistleblowing Platform

Yuffie Kisaragi · Published 2025-12-15 · Updated 2025-12-24 · CVE-2025-34412

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Convercent Whistleblowing Platform versions (affected versions not specified)

Description The application exhibits a protection mechanism failure in browser and session handling. It lacks essential HTTP security headers, including Content-Security-Policy, Referrer-Policy, Permissions-Policy, Cross-Origin-Embedder-Policy, Cross-Origin-Opener-Policy, and Cross-Origin-Resource-Policy. Clickjacking protections are incomplete, and session cookies are issued with insecure attributes, such as duplicate ASP.NET SessionId values, a missing Secure attribute for the affinity cookie, and inconsistent SameSite settings. These issues weaken browser isolation and session integrity, potentially leading to client-side attacks, session fixation, and cross-site session leakage.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

CVE-2025-34412

Affected Products

Convercent Whistleblowing Platform

References · 8

• 🔥 https://seclists.org/fulldisclosure/2025/Dec/4 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-34412 · Security Note
• https://t.me/cveNotify/146751 · Telegram Post
• https://convercent.com · Note
• https://twitter.com/CVEnew/status/2000611195817202043 · Twitter Post
• https://vulncheck.com/advisories/convercent-whisteblowing-platform-protection-mechanism-failure-insecure-default-browser-and-session-controls · Note
• https://t.me/CVEtracker/39844 · Telegram Post
• https://eqs.com/en-us/platform-convercent-clients · Note