FreeScout: User Account Enumeration via Password Reset Response Differentiation

published 2026-05-29 5 mo ago modified 2026-07-22 3 mo ago also EUVD-2026-33441

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits: 0; none known

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.219, the password reset endpoint returns visually distinct responses depending on whether the submitted email address belongs to an existing user account, allowing unauthenticated attackers to enumerate valid helpdesk agent email addresses. This vulnerability is fixed in 1.8.219.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 5 mo ago (2026-06-02)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jvmv-2qcp-7855 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

freescout-help-desk freescout

Classification

Weakness

CWE-203 Observable Discrepancy
CWE-204 Observable Response Discrepancy

References

github.com /freescout-help-desk/freescout/security/advisories/GHSA-jvmv-2qcp-7855
exploit

Sources

CVE List CVE-2026-45294
NVD CVE-2026-45294

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary