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PatchSiren cyber security CVE debrief

CVE-2026-11511 Bolt CVE debrief

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.

Vendor
Bolt
Product
CMS
CVSS
LOW 2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-08
Original CVE updated
2026-07-23
Advisory published
2026-06-08
Advisory updated
2026-07-23

Who should care

Users of Bolt CMS version up to 3.7.5

Technical summary

The vulnerability exists in the TextType.php file, specifically in the handling of the 'style' argument, which can be manipulated to inject HTML code.

Defensive priority

Low

Recommended defensive actions

  • Upgrade to a supported version of Bolt CMS, if available
  • Implement additional security measures to monitor and restrict input to the TextType.php file

Evidence notes

The CVE record was published on [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11511). The NVD detail can be found at [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11511). Additional information is available at [ref-4](https://vuldb.com/cve/CVE-2026-11511), [ref-5](https://vuldb.com/submit/836106), [ref-6](https://vuldb.com/vuln/369131), and [ref-7](https://vuldb.com/vuln/369131/cti).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11511 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11511

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11511 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11511

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.