CVE-2026-126484 json
OpenEMR before 8.5.0 Stored XSS via Printed Fee Sheet Appointment Comments
published 18d ago modified yesterday also EUVD-2026-124940 , GHSA-c997-5w2m-grrf
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
- 5.4
- 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 12%
- public exploits
- 0
- none known
Summary
OpenEMR before 8.5.0 contains a stored cross-site scripting vulnerability in printed_fee_sheet.php that allows authenticated portal patients to inject script by setting unescaped appointment comments (pc_hometext). Attackers can submit HTML payloads via the form_comments field in add_edit_event_user.php that execute when staff open the patient's fee sheet, acting within the staff session.
Patch / fix
- openemr openemr 8.5.0
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- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- yesterday
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% 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:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:P/VC:L/VI:L/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-c997-5w2m-grrf
vendor-advisory, advisory
-
vulncheck.com
/advisories/openemr-before-8.5.0-stored-xss-via-printed-fee-sheet-appointment-comments
third-party-advisory
Sources
- CVE List CVE-2026-126484
- NVD CVE-2026-126484
- Maintainer advisory GHSA-c997-5w2m-grrf
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.