Vulnerability · Published Sep 16, 2026 · Assigned by VulnCheck
CVE-2026-92298EspoCRM through 10.0.8 Weak Token Generation via rand()
Medium 4.8
In plain English
A medium-severity security flaw in EspoCRM from EspoCRM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)0.4%top 62.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
EspoCRM through 10.0.8 uses PHP's rand() function to generate tokens for lead-capture opt-in, event invitation, and campaign URLs instead of a cryptographically secure generator. Remote unauthenticated attackers can guess these roughly 31-bit tokens to confirm opt-ins, accept or decline event invitations on behalf of other contacts, and access event details.
Affected products (as reported)
Weakness: CWE-338 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
References
- Reporter write-up technical-description
- Patch Commit (unreleased at time of assignment) patch
- Util::generateMoreEntropyId() at 10.0.8 technical-description
- UniqueId::getNew() applies the weak generator technical-description
- https://github.com/espocrm/espocrm product
- VulnCheck Advisory: EspoCRM through 10.0.8 Weak Token Generation via rand() third-party-advisory