CVE-2026-126476 json
OpenEMR before 8.5.0 Reflected XSS via auto-suggest searchMode parameter
published 18d ago modified yesterday also EUVD-2026-124948 , GHSA-8mwp-vq82-x5mr
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository openemr/openemr. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
OpenEMR before 8.5.0 contains a reflected cross-site scripting vulnerability in the Application module's auto-suggest endpoint, which echoes the searchMode POST parameter unencoded into a single-quoted onClick attribute. Attackers can induce an authenticated user to submit a single-quote payload to application/index/search, executing arbitrary JavaScript in that user's session to steal session cookies or disclose patient data.
Patch / fix
- openemr openemr 8.5.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- yesterday
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 5.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- openemr openemr
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/openemr/openemr/security/advisories/GHSA-8mwp-vq82-x5mr
vendor-advisory, advisory
-
vulncheck.com
/advisories/openemr-before-8.5.0-reflected-xss-via-auto-suggest-searchmode-parameter
third-party-advisory
Sources
- CVE List CVE-2026-126476
- NVD CVE-2026-126476
- Maintainer advisory GHSA-8mwp-vq82-x5mr
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of openemr/openemr published their own advisory on GitHub. Reviewed sources take precedence over it.