CVE Explorer
CVE-2026-13323
In Open VSX Registry before 1.0.2, the /vscode/unpkg/ endpoint serves user-supplied HTML files with Content-Type: text/html and without a Content-Security-Policy or Content-Disposition: attachment response header. An unauthenticated attacker can register a publisher account, upload a VSIX containing a crafted HTML payload, and induce an authenticated user to visit the resulting URL. The browser renders the file inline in the open-vsx.org origin context, enabling session token exfiltration, persi
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Eclipse Open VSX","vendor":"Eclipse Foundation","versions":[{"lessThan":"1.0.2","status":"affected","version":"0.1.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:facbe58da714c525f983a23a8eb988dbcd981783929a0ceebb28719d3da479a6 · sha256:7064fdfeb9018718… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.1,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:facbe58da714c525f983a23a8eb988dbcd981783929a0ceebb28719d3da479a6 · sha256:7064fdfeb9018718… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:facbe58da714c525f983a23a8eb988dbcd981783929a0ceebb28719d3da479a6 · sha256:7064fdfeb9018718… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"https://github.com/eclipse-openvsx/openvsx/pull/1922"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:facbe58da714c525f983a23a8eb988dbcd981783929a0ceebb28719d3da479a6 · sha256:7064fdfeb9018718… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/485"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:facbe58da714c525f983a23a8eb988dbcd981783929a0ceebb28719d3da479a6 · sha256:7064fdfeb9018718… · /containers/adp/0/references/0
{"url":"https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/485"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:facbe58da714c525f983a23a8eb988dbcd981783929a0ceebb28719d3da479a6 · sha256:7064fdfeb9018718… · /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.