Cross-site scripting in baserCMS
Priority LOW 22CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
A cross-site scripting vulnerability via script validation bypass exists in baserCMS. If this vulnerability is exploited, an arbitrary script may be executed in the user's web browser.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00151 4th percentileScored 2026-11-07
Fix Fixed baserCMS (baserCMS User Community): 5.4.1, 5.3.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| baserCMS User Community | baserCMS | before 5.4.1; before 5.3.1 | 5.4.1, 5.3.1 | Patch available | CNA |
- baserCMS VendorbaserCMS User Community Affected before 5.4.1; before 5.3.1 Fixed in 5.4.1, 5.3.1 Patch available CNA
Remediation
- Fix · CNA baserCMS (baserCMS User Community) Fixed in 5.4.1, 5.3.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
baserCMS 5.3.1, 5.4.1
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-62986 Missing authentication in baserCMSPriority LOW 36
- TI-2026-62988 Cross-site scripting in baserCMSPriority LOW 22
- TI-2026-62985 Cross-site scripting in baserCMSPriority LOW 22
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93463
More baserCMS User Community vulnerabilities
- TI-2026-62986 Missing authentication in baserCMS CVSS 4.0MEDIUM 6.9
- TI-2026-62988 Cross-site scripting in baserCMS CVSS 4.0MEDIUM 5.1
- TI-2026-62985 Cross-site scripting in baserCMS CVSS 4.0MEDIUM 5.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences