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CVE-2026-37503

Cross-Site Scripting (XSS) in V2Board thru 1.7.4. The custom_html field in theme configuration is rendered using Blade unescaped output in public/theme/v2board/dashboard.blade.php. An admin can inject arbitrary JavaScript via the saveThemeConfig API. All site visitors execute the payload, enabling cookie theft, session hijacking, or phishing.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:193daa23d7cd970c195ecc9ad40bf03dffba519292cb0f81739a2f2789e43ff8
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:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /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:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /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:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AC:L/AV:N/A:N/C:H/I:L/PR:H/S:C/UI:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /containers/cna/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:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /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:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /containers/cna/references/1
{"url":"https://github.com/v2board/v2board"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1fadcdf625a02d33442bf6cf38b34807ca9879027f54fba5c9e81cc30881b87 · sha256:25ce38ebe211b347… · /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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