CVE-2026-32870: CWE-91: XML Injection (aka Blind XPath Injection) in getkirby kirby
CVE-2026-32870 is an XML Injection vulnerability in the getkirby CMS affecting versions prior to 4. 9. 0 and between 5. 0. 0 and before 5. 4. 0. The issue arises from improper handling of CDATA blocks in the Xml::value() method, allowing structured data outside valid CDATA blocks to bypass escaping protections. This vulnerability can be exploited if site or plugin code uses the vulnerable XML generation methods to create XML strings from input data, potentially enabling manipulation of systems that process these XML files. The vulnerability does not affect Kirby core functionality or sites that do not use XML generation in site or plugin code.
AI Analysis
Technical Summary
Kirby's Xml::value() method incorrectly allowed input containing valid CDATA blocks alongside other structured data to bypass escaping, leading to XML Injection (CWE-91). This flaw affected Kirby versions before 4.9.0 and from 5.0.0 up to but not including 5.4.0. The vulnerability impacts site or plugin code that generates XML strings using Xml::value(), Xml::tag(), Xml::create(), or the Xml data handler. Exploitation could manipulate XML schemas processed by downstream systems. The vulnerability is fixed in Kirby 4.9.0 and 5.4.0 by ensuring only strings fully composed of valid CDATA blocks are allowed passthrough without escaping.
Potential Impact
The vulnerability allows attackers to inject XML content by circumventing escaping protections in XML generation methods, potentially altering the behavior of systems that consume these XML files. However, the core Kirby CMS and sites not using XML generation in site or plugin code are not affected. There are no known exploits in the wild. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high scope impact.
Mitigation Recommendations
This vulnerability has been patched in Kirby versions 4.9.0 and 5.4.0. Users should upgrade to at least these versions to remediate the issue. Sites or plugins that do not use the vulnerable XML generation methods are not affected and require no action. Patch status is not explicitly stated beyond the version fixes; therefore, verify with the official Kirby release notes for confirmation.
CVE-2026-32870: CWE-91: XML Injection (aka Blind XPath Injection) in getkirby kirby
Description
CVE-2026-32870 is an XML Injection vulnerability in the getkirby CMS affecting versions prior to 4. 9. 0 and between 5. 0. 0 and before 5. 4. 0. The issue arises from improper handling of CDATA blocks in the Xml::value() method, allowing structured data outside valid CDATA blocks to bypass escaping protections. This vulnerability can be exploited if site or plugin code uses the vulnerable XML generation methods to create XML strings from input data, potentially enabling manipulation of systems that process these XML files. The vulnerability does not affect Kirby core functionality or sites that do not use XML generation in site or plugin code.
CVSS v4.0
Score 6.9medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Kirby's Xml::value() method incorrectly allowed input containing valid CDATA blocks alongside other structured data to bypass escaping, leading to XML Injection (CWE-91). This flaw affected Kirby versions before 4.9.0 and from 5.0.0 up to but not including 5.4.0. The vulnerability impacts site or plugin code that generates XML strings using Xml::value(), Xml::tag(), Xml::create(), or the Xml data handler. Exploitation could manipulate XML schemas processed by downstream systems. The vulnerability is fixed in Kirby 4.9.0 and 5.4.0 by ensuring only strings fully composed of valid CDATA blocks are allowed passthrough without escaping.
Potential Impact
The vulnerability allows attackers to inject XML content by circumventing escaping protections in XML generation methods, potentially altering the behavior of systems that consume these XML files. However, the core Kirby CMS and sites not using XML generation in site or plugin code are not affected. There are no known exploits in the wild. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high scope impact.
Mitigation Recommendations
This vulnerability has been patched in Kirby versions 4.9.0 and 5.4.0. Users should upgrade to at least these versions to remediate the issue. Sites or plugins that do not use the vulnerable XML generation methods are not affected and require no action. Patch status is not explicitly stated beyond the version fixes; therefore, verify with the official Kirby release notes for confirmation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-16T21:03:44.419Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69eac1fc87115cfb688c86e8
Added to database: 4/24/2026, 1:06:04 AM
Last enriched: 5/1/2026, 8:46:03 PM
Last updated: 6/7/2026, 10:40:58 PM
Views: 70
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