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CVE-2026-28560

wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows script injection via forum URL data output into an inline script block using json_encode without the JSON_HEX_TAG flag. Attackers set a forum slug containing a closing script tag or unescaped single quote to break out of the JavaScript string context and execute arbitrary script in all visitors' browsers.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2e789d4b3e1c17a18cefaf96ea216e06ae00feaf6a77173f14aa482b265efbd4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"wpForo Forum","vendor":"gVectors Team","versions":[{"lessThan":"2.4.16","status":"affected","version":"2.4","versionType":"custom"},{"status":"unaffected","version":"2.4.16","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"wpForo Forum WordPress Plugin","tags":["product"],"url":"https://wordpress.org/plugins/wpforo/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/references/0
{"name":"wpForo Forum Contributors & Developers","tags":["patch"],"url":"https://wordpress.org/plugins/wpforo/#developers"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /containers/cna/references/1
{"name":"VulnCheck Advisory: wpForo Forum 2.4.14 Stored XSS via Unsafe JSON Encoding in Inline Script","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unsafe-json-encoding-in-inline-script"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5aeea7649f9198e4f875f3318ca636009ee9f26d49bc968fd033b4476d095e93 · sha256:0ffa13b8afadc925… · /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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