Vulnerability · Published Oct 12, 2026 · Assigned by VulDB

CVE-2026-108900Exponent CMS XML-RPC xmlrpc.php userLogin sql injection

High 7.3

In plain English

A high-severity SQL injection in CMS from Exponent. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.3%top 83.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Exponent CMS up to 3.0.2patch2. Affected is the function userLogin of the file xmlrpc.php of the component XML-RPC. Such manipulation leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Exponent	CMS	3.0.2patch13.0.2patch2

Weakness: CWE-89, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C

References

VDB-416691 | Exponent CMS XML-RPC xmlrpc.php userLogin sql injection vdb-entry, technical-description
VDB-416691 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-108900 | CVE Analysis and Report third-party-advisory
Submit #976950 | Exponentcms Exponent CMS ≤3.0.2 SQL Injection third-party-advisory
https://github.com/dddwmr/CVE/blob/main/SQL%20Injection%20in%20xmlrpc.php%20userLogin%20username%20handling%20when%20USE_XMLRPC%20is%20enabled.md exploit