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CVE-2026-53592

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. A Prototype Pollution condition in the `getQueryParam` function `/public/js/main.js` and was addressed in version 1.8.139 by blocking URL query keys matching the pattern `__proto__`. However, this mitigation is incomplete: it only filters top-level `__proto__` keys and fails to sanitize nested forms such as `b[__proto__][polluted]=PWNED`. As a result, an attacker-controlled URL query string can still write into `O
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ef04f11f6a9429a6a59282a8e34d646d8ad2472e0572e5cff7ab9bc670a95cc9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"freescout","vendor":"freescout-help-desk","versions":[{"status":"affected","version":"< 1.8.223"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b2c578c7e4d10227d3c89e9237ed7a6b798efdcbd0575b76bcc325eba0c2f5a4 · sha256:2b043bf4c3335fe8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b2c578c7e4d10227d3c89e9237ed7a6b798efdcbd0575b76bcc325eba0c2f5a4 · sha256:2b043bf4c3335fe8… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1321","description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b2c578c7e4d10227d3c89e9237ed7a6b798efdcbd0575b76bcc325eba0c2f5a4 · sha256:2b043bf4c3335fe8… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w5fc-8pp3-f755","tags":["x_refsource_CONFIRM"],"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w5fc-8pp3-f755"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b2c578c7e4d10227d3c89e9237ed7a6b798efdcbd0575b76bcc325eba0c2f5a4 · sha256:2b043bf4c3335fe8… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w5fc-8pp3-f755"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b2c578c7e4d10227d3c89e9237ed7a6b798efdcbd0575b76bcc325eba0c2f5a4 · sha256:2b043bf4c3335fe8… · /containers/adp/0/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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