User enumeration vulnerability in /pwreset.php in osTicket v1.18.2 allows remote…
Priority MEDIUM 63CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-203.
Summary
User enumeration vulnerability in /pwreset.php in osTicket v1.18.2 allows remote attackers to enumerate valid usernames registered in the platform.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0036 30th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:enhancesoft:osticket:*:*:*:*:*:*:*:* | before 1.18.3 | Vulnerable | Enhancesoft |
- cpe:2.3:a:enhancesoft:osticket:*:*:*:*:*:*:*:* Versions before 1.18.3 Vulnerable ·Enhancesoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-26895
- 2026-10-03 Alias added: GHSA-6p2p-wf8c-wq75
More Enhancesoft Osticket vulnerabilities
- TI-2026-17810 osTicket (1.18.x < 1.18.3, 1.17.x < 1.17.7) PDF Export Arbitrary File Read CVSS 4.0HIGH 8.7
- TI-2020-15225 SSRF exists in osTicket before 1.14.3, where an attacker can add malicious file to server or perform port scanning. CVSS 3.1CRITICAL 9.8
- TI-2022-13727 Session Fixation vulnerability in in function login in class.auth.php in osTicket through 1.16.2. CVSS 3.1HIGH 8.8
- TI-2025-19272 A SQL injection vulnerability in the "Search" functionality of "tickets.php" page in… CVSS 3.1MEDIUM 6.5
- TI-2023-14123 A denial of service attack might be launched against the server if an unusually lengthy… CVSS 3.1HIGH 7.5
- TI-2022-03911 Cross-site Scripting (XSS) - Reflected in osticket/osticket CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-26895 · CVE Program
- CVE-2026-26895 · NVD
- FIRST EPSS
- GHSA-6p2p-wf8c-wq75 · GitHub Advisory Database · CC BY 4.0
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