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CVE-2026-28556

wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to move, merge, or split any forum topic via the topic_move, topic_merge, and topic_split form action handlers. Attackers with a valid form nonce can reorganize arbitrary forum content without moderator permissions, including relocating topics to private forums.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e562b5a9b30d10dda03b977511a9b2fe972bfec2402ea60505d5637b8275a4e7
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":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /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:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-862","description":"Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /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:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /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:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /containers/cna/references/1
{"name":"VulnCheck Advisory: wpForo Forum 2.4.14 Missing Authorization via Topic Management Form Handlers","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/wpforo-forum-missing-authorization-via-topic-management-form-handlers"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44f4ce03af0df95e02c76d9ac95a7e4fae7c1224716f0458887a19372afe4a3c · sha256:e821099e0fd9ada0… · /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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