Read the docs
TI-2026-09940 Aliases CVE-2026-11511GHSA-wr9m-77f5-2xp5

Bolt CMS HTML Attribute TextType.php HTML injection

Priority MEDIUM 56CWE-74Published · 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 · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-80.

Summary

A weakness has been identified in Bolt CMS up to 3.7.5. This vulnerability affects unknown code of the file src/Storage/Field/Type/TextType.php of the component HTML Attribute Handler. Executing a manipulation of the argument style can lead to HTML injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The GitHub repository was archived by the owner and is now read-only. This vulnerability only affects products that are no longer supported by the maintainer.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00191 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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

VendorProductAffected versionsFixed inStatusSource
BoltCMS3.7.0; 3.7.1; 3.7.2; 3.7.3; 3.7.4; 3.7.5—No fix listedCNA
  • CMS VendorBolt Affected 3.7.0; 3.7.1; 3.7.2; 3.7.3; 3.7.4; 3.7.5 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:bolt:cms:*:*:*:*:*:*:*:*——Bolt
  • cpe:2.3:a:bolt:cms:*:*:*:*:*:*:*:* Versions — — ·Bolt

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-11511
  2. 2026-10-03 Alias added: GHSA-wr9m-77f5-2xp5

References

—

  • TI-2022-16851 Bolt CMS contains a vulnerability in version 5.1.12 and below that allows an… CVSS 3.1HIGH 8.8
  • TI-2024-06761 Bolt CMS Showcase Creation showcases cross site scripting CVSS 4.0MEDIUM 5.3
  • TI-2024-06760 Bolt CMS Entry Preview page cross site scripting CVSS 4.0MEDIUM 5.3
  • TI-2025-24250 Bolt CMS Authenticated Remote Code Execution via Profile Injection and File Rename CVSS 4.0HIGH 7.5
  • TI-2021-17367 Bolt CMS <= 4.2 is vulnerable to Remote Code Execution. CVSS 3.1HIGH 8.8
  • TI-2026-49958 Bolt CMS Server-Side Template Injection via Unsandboxed allow_twig Field Rendering CVSS 3.1HIGH 8.8
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences