The Post Grid < 7.9.5 - Contributor+ Stored HTML/iframe Injection via wp_kses_post Allow-List Widening
28Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 3.5epss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
The Post Grid WordPress plugin before 7.9.5 does not limit an expansion of the WordPress allowed-HTML list to its own markup and applies it site-wide, allowing users with the Contributor role and above to store iframe, style and input elements that are normally stripped from their content, leading to HTML injection (phishing frames, CSS defacement and spoofed input forms) that renders to any visitor and to administrators reviewing the content.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
Affected products
Unknown · The Post Gridpublic PoCs found — 1
cve_referencewpscan.com/vulnerability/6601a305-a76f-40fe-8d78-c6a33a66d5f3/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.