CVE-2026-11511: Basic Cross Site Scripting in Bolt CMS
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.
AI Analysis
Technical Summary
Bolt CMS versions 3.7.0 through 3.7.5 contain a vulnerability in the HTML Attribute Handler component where manipulation of the 'style' argument can lead to HTML injection. This is classified as a basic cross-site scripting vulnerability. The flaw exists in the file src/Storage/Field/Type/TextType.php. The vulnerability can be exploited remotely without requiring elevated privileges, though user interaction is needed. The affected Bolt CMS versions are no longer maintained, and the source repository is archived, indicating no forthcoming official fixes. The CVSS 4.0 vector indicates network attack vector, low attack complexity, low privileges required, and user interaction needed, with partial impact on integrity and availability but no impact on confidentiality or scope.
Potential Impact
Successful exploitation of this vulnerability can allow an attacker to inject arbitrary HTML, potentially leading to cross-site scripting attacks. This could enable attackers to execute scripts in the context of users visiting the affected Bolt CMS site, possibly leading to session hijacking or other client-side impacts. However, the impact is limited by the need for user interaction and the low privileges required for the attack. Since the affected versions are unsupported, users remain exposed unless they upgrade or migrate.
Mitigation Recommendations
No official patch or remediation is currently available due to the affected Bolt CMS versions being unsupported and the repository archived. Users are advised to upgrade to a supported version of Bolt CMS if available or migrate to alternative solutions. Until then, mitigating exposure by restricting access or sanitizing inputs at the application or web server level may reduce risk. Patch status is not yet confirmed — check the vendor advisory or community resources for any updates or unofficial fixes.
CVE-2026-11511: Basic Cross Site Scripting in Bolt CMS
Description
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.
CVSS v4.0
Score 5.1medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Bolt CMS versions 3.7.0 through 3.7.5 contain a vulnerability in the HTML Attribute Handler component where manipulation of the 'style' argument can lead to HTML injection. This is classified as a basic cross-site scripting vulnerability. The flaw exists in the file src/Storage/Field/Type/TextType.php. The vulnerability can be exploited remotely without requiring elevated privileges, though user interaction is needed. The affected Bolt CMS versions are no longer maintained, and the source repository is archived, indicating no forthcoming official fixes. The CVSS 4.0 vector indicates network attack vector, low attack complexity, low privileges required, and user interaction needed, with partial impact on integrity and availability but no impact on confidentiality or scope.
Potential Impact
Successful exploitation of this vulnerability can allow an attacker to inject arbitrary HTML, potentially leading to cross-site scripting attacks. This could enable attackers to execute scripts in the context of users visiting the affected Bolt CMS site, possibly leading to session hijacking or other client-side impacts. However, the impact is limited by the need for user interaction and the low privileges required for the attack. Since the affected versions are unsupported, users remain exposed unless they upgrade or migrate.
Mitigation Recommendations
No official patch or remediation is currently available due to the affected Bolt CMS versions being unsupported and the repository archived. Users are advised to upgrade to a supported version of Bolt CMS if available or migrate to alternative solutions. Until then, mitigating exposure by restricting access or sanitizing inputs at the application or web server level may reduce risk. Patch status is not yet confirmed — check the vendor advisory or community resources for any updates or unofficial fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-07T15:45:50.571Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a26bda8e29bf47b50e65fd3
Added to database: 6/8/2026, 1:03:36 PM
Last enriched: 6/8/2026, 1:19:26 PM
Last updated: 6/9/2026, 6:04:42 AM
Views: 8
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