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CVE-2026-49954

Discuz! X5.0 releases 20260320 through 20260610 contain a local file inclusion vulnerability that allows authenticated administrators to execute arbitrary code by importing a specially crafted plugin configuration containing path traversal sequences in the directory attribute. Attackers can trigger an exception during plugin installation to bypass sanitization routines, causing malicious paths to be stored unsanitized and subsequently passed to include(), which combined with file upload function
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c947e9ca36e19626bfe1b6096ce12ae21e9c00690c09a027e2b744a677e83fa3
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":"HIGH","baseScore":7.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","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:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unknown","product":"Discuz! X5.0","repo":"https://gitee.com/Discuz/DiscuzX","vendor":"Discuz!","versions":[{"lessThanOrEqual":"20260610","status":"affected","version":"20260320","versionType":"date"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","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:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-98","description":"Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"http://seclists.org/fulldisclosure/2026/Jun/5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/adp/0/references/0
{"tags":["technical-description"],"url":"https://karmainsecurity.com/KIS-2026-11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://karmainsecurity.com/chaining-bugs-in-discuz-from-race-condition-to-rce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /containers/cna/references/1
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/discuz-x5-0-local-file-inclusion-via-enable-disable-php-plugin-directory"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee635e9741d151f6decee359cea56ec8bb8d73b0701ab55007fe24575eff6b57 · sha256:fed0ca85aacd4c4f… · /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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