Description
A logic vulnerability in the password reset token validation routine implemented by osTicket in versions prior to v1.17.8 and v1.18.4. During the password reset process, the application retrieves the timestamp associated with the provided token and checks whether the configured validity period has expired. Consequently, the expiry check is only performed if the timestamp lookup fails, allowing tokens with an existing timestamp to bypass the intended expiry validation. Therefore, an attacker able to obtain a valid password reset token could reuse it to perform an unauthorised password reset and compromise the affected account.
Published: 2026-07-30
Score: 9.1 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

The issue has been resolved in versions v1.17.8 and v1.18.4.

Tracking

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Advisories

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History

Thu, 30 Jul 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 30 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Enhancesoft
Enhancesoft osticket
Vendors & Products Enhancesoft
Enhancesoft osticket

Thu, 30 Jul 2026 10:45:00 +0000

Type Values Removed Values Added
Description A logic vulnerability in the password reset token validation routine implemented by osTicket in versions prior to v1.17.8 and v1.18.4. During the password reset process, the application retrieves the timestamp associated with the provided token and checks whether the configured validity period has expired. Consequently, the expiry check is only performed if the timestamp lookup fails, allowing tokens with an existing timestamp to bypass the intended expiry validation. Therefore, an attacker able to obtain a valid password reset token could reuse it to perform an unauthorised password reset and compromise the affected account.
Title Weak password recovery mechanism in osTicket by Enhancesoft LLC
Weaknesses CWE-640
References
Metrics cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Enhancesoft Osticket
cve-icon MITRE

Status: PUBLISHED

Assigner: INCIBE

Published:

Updated: 2026-07-30T12:20:40.629Z

Reserved: 2026-07-30T08:57:33.496Z

Link: CVE-2026-18363

cve-icon Vulnrichment

Updated: 2026-07-30T12:20:34.590Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-30T12:00:06Z

Weaknesses
  • CWE-640

    Weak Password Recovery Mechanism for Forgotten Password