Disputed HTML injection via in-app messages
Published Apr 13, 2026 · Updated Apr 13, 2026
Stored XSS in Totara Learning 19.1.5 and earlier allows remote authenticated users to inject HTML into recipients' messages. The report says the in-app messaging client renders attacker-supplied message markup, but it identifies no sanitizer bypass or unsafe tag or attribute. Totara disputes the finding, stating that DOMPurify removes disallowed tags and attributes and only approved formatting tags are accepted.
Summary
What happened
Stored XSS in Totara Learning 19.1.5 and earlier allows remote authenticated users to inject HTML into recipients' messages. The report says the in-app messaging client renders attacker-supplied message markup, but it identifies no sanitizer bypass or unsafe tag or attribute. Totara disputes the finding, stating that DOMPurify removes disallowed tags and attributes and only approved formatting tags are accepted.
The record
- CVE
- CVE-2026-31281
- Published
- Apr 13, 2026
- Updated
- Apr 13, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 13, 2026CVE publishedPublication date reported by the CVE source.
- Apr 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Public exploit references
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Technologies
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