CVE-2026-31281
Totara LMS <=19.1.5 HTML injection enables session hijack and in-browser code execution.
Is CVE-2026-31281 being exploited?
Not confirmed. CVE-2026-31281 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-31281?
CVE-2026-31281 is rated High with a CVSS score of 8.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-31281?
Not known from our data. No patch reference has been recorded for CVE-2026-31281, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-31281 affect?
CVE-2026-31281 affects Totara LMS <= 19.1.5. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-31281?
Await vendor patch; sanitize HTML in messages and restrict HTML rendering.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
HTML injection via messages allows attacker to run code in the victim's browser and hijack sessions.
Patch when possible