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CVE-2026-58487

HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to version 1.11.0, due to unsafe handling of the local-part of registered email addresses, HedgeDoc was vulnerable to stored HTML Injection through its publish and slide views. An attacker could register a specially crafted email address and inject arbitrary HTML into pages viewed by other users. HedgeDoc accepted RFC 5321 quoted-string local-parts in email addresses during registration. The local-part was t
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3dc381b468cc6e586ce086a4018406b5ba5da1aa64448228e7a4eea0b803c691
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-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a78743a8959155ba84068b281da59cf63e0d68175af014bba0ac4e5345a88eb0 · sha256:fb9b9df48fd6fb9b… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a78743a8959155ba84068b281da59cf63e0d68175af014bba0ac4e5345a88eb0 · sha256:fb9b9df48fd6fb9b… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"hedgedoc","vendor":"hedgedoc","versions":[{"status":"affected","version":"< 1.11.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a78743a8959155ba84068b281da59cf63e0d68175af014bba0ac4e5345a88eb0 · sha256:fb9b9df48fd6fb9b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a78743a8959155ba84068b281da59cf63e0d68175af014bba0ac4e5345a88eb0 · sha256:fb9b9df48fd6fb9b… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a78743a8959155ba84068b281da59cf63e0d68175af014bba0ac4e5345a88eb0 · sha256:fb9b9df48fd6fb9b… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a78743a8959155ba84068b281da59cf63e0d68175af014bba0ac4e5345a88eb0 · sha256:fb9b9df48fd6fb9b… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-6c2w-8w96-3pcv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-6c2w-8w96-3pcv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a78743a8959155ba84068b281da59cf63e0d68175af014bba0ac4e5345a88eb0 · sha256:fb9b9df48fd6fb9b… · /containers/cna/references/0

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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