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CVE-2026-19856: All in One SEO 0 to before 5.0.2.1
CVE-2026-19856. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA). EPSS 0.00183 (percentile 0.07146), scored 2026-10-05.
Affected technology
All in One SEO · 0 to before 5.0.2.1
Vendor not specified by the source
Description’s affected range: before 5.0.2.1 does not correctly determine which shortcodes are present in content derived from user input before deciding which ones to strip
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Unauthenticated users can execute arbitrary shortcodes registered on the site. Vendor/CNA’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as low; availability impact as none.
- CWE
- CWE-74
- CCR priority
- 26.0 /100 (P4)
- CVSS 3.1
- 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N · Vendor/CNA
- EPSS
- 0.00183 · percentile 0.07146 · 2026-10-05
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-07 02:34:12.333111+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-07 02:36:03.777225+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-19856.html