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CVE-2026-59713— Leantime - OIDC Login CSRF via Unconditional State Verification Stub

CVSS 8.1 · High EPSS 0.15% · P5

Affected Version Matrix 1

VendorProductVersion RangeStatus
LeantimeLeantime≤ 3.4.4affected
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I. Basic Information for CVE-2026-59713

Vulnerability Information
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Vulnerability Title
Leantime - OIDC Login CSRF via Unconditional State Verification Stub
Source: NVD (National Vulnerability Database)
Vulnerability Description
Leantime contains an OIDC login CSRF vulnerability in the verifyState() method that unconditionally returns true without validating state parameters. Attackers can craft malicious callback URLs with attacker-controlled authorization codes to perform session fixation, logging victims in as the attacker.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨站请求伪造(CSRF)
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LeantimeLeantime 0 ~ 3.4.4 -

II. Public POCs for CVE-2026-59713

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 6961 chars
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III. Intelligence Information for CVE-2026-59713

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Patches & Fixes for CVE-2026-59713 (1)

Vendor Advisories for CVE-2026-59713 (1)

Proof of Concept for CVE-2026-59713 (1)

Other References for CVE-2026-59713 (1)

IV. Related Vulnerabilities

Same product: Leantime
Same vendor: Leantime
Same weakness: CWE-352

V. Comments for CVE-2026-59713

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