Easy Appointments < 3.12.28 - Contributor+ Shortcode Allowlist Bypass
Priority MEDIUM 47CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The Easy Appointments WordPress plugin before 3.12.28 does not correctly validate shortcode input in one of its block-rendering actions, checking only the first tag of the supplied string against an allowlist while rendering the entire string, allowing users with contributor-level access to execute arbitrary registered shortcodes.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00316 24th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Easy Appointments (Unknown): 3.12.28
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Easy Appointments | before 3.12.28 | 3.12.28 | Patch available | CNA |
- Easy Appointments VendorUnknown Affected before 3.12.28 Fixed in 3.12.28 Patch available CNA
Remediation
- Fix · CNA Easy Appointments (Unknown) Fixed in 3.12.28
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14225
- 2026-10-03 Alias added: GHSA-m9g2-wqhj-c2j4
References
Sources
- CVE-2026-14225 · CVE Program
- CVE-2026-14225 · NVD
- FIRST EPSS
- GHSA-m9g2-wqhj-c2j4 · GitHub Advisory Database · CC BY 4.0
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