CVE Explorer
CVE-2026-25529
Postal is an open source SMTP server. Postal versions less than 3.3.5 had a HTML injection vulnerability that allowed unescaped data to be included in the admin interface. The primary way for unescaped data to be added is via the API's "send/raw" method. This could allow arbitrary HTML to be injected in to the page which may modify the page in a misleading way or allow for unauthorised javascript to be executed. Fixed in 3.3.5 and higher.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"postal","vendor":"postalserver","versions":[{"status":"affected","version":"< 3.3.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:80594d56e6b8ab122b0deebc619f2efef1e4bbe9f85be403b10986053f04d1b3 · sha256:73ce58b54530c2db… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:80594d56e6b8ab122b0deebc619f2efef1e4bbe9f85be403b10986053f04d1b3 · sha256:73ce58b54530c2db… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:80594d56e6b8ab122b0deebc619f2efef1e4bbe9f85be403b10986053f04d1b3 · sha256:73ce58b54530c2db… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/postalserver/postal/security/advisories/GHSA-5f4r-5jpr-rfhc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/postalserver/postal/security/advisories/GHSA-5f4r-5jpr-rfhc"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:80594d56e6b8ab122b0deebc619f2efef1e4bbe9f85be403b10986053f04d1b3 · sha256:73ce58b54530c2db… · /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.