RCE in Baserproject Basercms
CVE-2026-76635
baserCMS before 5.3.0 contains a SQL injection vulnerability in BcDatabaseService.php that allows authenticated administrators to inject attacker-controlled table names and configuration values directly into SQL statements across sequence update, CSV export, and table management operations. Attackers can chain a backup restore code injection flaw, where PHP code outside class definitions in schema files executes unconditionally upon loading, to plant malicious table names and trigger error-based SQL injection that retrieves database version, schema contents, and arbitrary data from the PostgreSQL backend.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
References
- baserCMS 5.3.0 Release Notes (release-notes)
- GitHub Security Advisory (GHSA-cg65-f2m7-9fqj) (vendor-advisory)
- www.vulncheck.com/advisories/basercms-sql-injection-and-code-injection-via-bcda… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-76635?
- CVE-2026-76635 is a high-severity vulnerability in Baserproject Basercms, classified under SQL Injection. CVSS score: 7.2/10. Published 2026-08-20.
- How severe is CVE-2026-76635?
- High severity. CVSS v3 base score is 7.2 out of 10.