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CVE-2026-51081

A cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment (PVE) 9.x 5.1.8 and Proxmox Virtual Environment (PVE) 8.x 4.3.16 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2396155eccbadbfdbe4f9fc46cfb474ef03c0d28ecfbc3ac29a55d7299c97c2e
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

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:444627bc38378734e3f0262418475d6aa6098dfd94f8302e89cad6dd564b0c64 · sha256:53421f3aca925db5… · /containers/cna/problemTypes/0/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:v2:444627bc38378734e3f0262418475d6aa6098dfd94f8302e89cad6dd564b0c64 · sha256:53421f3aca925db5… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:444627bc38378734e3f0262418475d6aa6098dfd94f8302e89cad6dd564b0c64 · sha256:53421f3aca925db5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:444627bc38378734e3f0262418475d6aa6098dfd94f8302e89cad6dd564b0c64 · sha256:53421f3aca925db5… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:444627bc38378734e3f0262418475d6aa6098dfd94f8302e89cad6dd564b0c64 · sha256:53421f3aca925db5… · /containers/cna/problemTypes/0/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:v2:444627bc38378734e3f0262418475d6aa6098dfd94f8302e89cad6dd564b0c64 · sha256:53421f3aca925db5… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/post-849973"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:444627bc38378734e3f0262418475d6aa6098dfd94f8302e89cad6dd564b0c64 · sha256:53421f3aca925db5… · /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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