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CVE-2026-28268

Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password reset tokens to be reused indefinitely. Due to a failure to invalidate tokens upon use and a critical logic bug in the token cleanup cron job, reset tokens remain valid forever. This allows an attacker who intercepts a single reset token (via logs, browser history, or phishing) to perform a complete,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:af515732b93f6f03b4e927bb1c3a532edd93c8fcca84a12e09f7179aa118ee7a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-459","description":"CWE-459: Incomplete Cleanup","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-640","description":"CWE-640: Weak Password Recovery Mechanism for Forgotten Password","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"vikunja","vendor":"go-vikunja","versions":[{"status":"affected","version":"< 2.1.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-459","description":"CWE-459: Incomplete Cleanup","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-640","description":"CWE-640: Weak Password Recovery Mechanism for Forgotten Password","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/go-vikunja/vikunja/commit/5c2195f9fca9ad208477e865e6009c37889f87b2","tags":["x_refsource_MISC"],"url":"https://github.com/go-vikunja/vikunja/commit/5c2195f9fca9ad208477e865e6009c37889f87b2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/references/1
{"name":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rfjg-6m84-crj2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rfjg-6m84-crj2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/references/0
{"name":"https://vikunja.io/changelog/vikunja-v2.1.0-was-released","tags":["x_refsource_MISC"],"url":"https://vikunja.io/changelog/vikunja-v2.1.0-was-released"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b64f0ab10a68a73e215e3926d36f4be2a087a71b71e1f9e8668ef9120b7db25d · sha256:f202711f802498dd… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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