CVE-2026-92298: Weak RNG (CVSS 4.8)

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.

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CVSS v3.1 Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0032

Probability of exploitation

0.25%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-338 CWE-338

References

Other References

https://gist.github.com/kazisabu/9e3109aab24245fde19b88f53f965e93 https://github.com/espocrm/espocrm https://github.com/espocrm/espocrm/blob/10.0.8/application/Espo/Core/Utils/Util.php#L585-L590 https://github.com/espocrm/espocrm/blob/10.0.8/application/Espo/Repositories/UniqueId.php#L47 https://github.com/espocrm/espocrm/commit/8e5555c1ee0ed1e92a9ad54e62f735ac2c4051a1 https://www.vulncheck.com/advisories/espocrm-through-10.0.8-weak-token-generation-via-rand

Frequently Asked Questions

What is CVE-2026-92298? +

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. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2026-92298? +

CVE-2026-92298 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0032, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-92298? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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