CVE-2026-28781 is a medium-severity vulnerability affecting Craft CMS versions prior to 4.17.0-beta.1 and 5.9.0-beta.1. It allows a user with "Create Entries" permission to spoof the author of a new entry by injecting the authorId parameter into the POST request, effectively attributing the content to any user, including administrators. The CVSS score is 6.5 (Medium), indicating a network-based attack with low complexity and high integrity impact, but no confidentiality or availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
> 4.0.0, < 4.17.0CPE matchmatch criteria | cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:* | ||
> 5.0.0, < 5.9.0CPE matchmatch criteria | cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:* | ||
4.0.0CPE matchmatch criteria | cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:* | ||
4.0.0CPE matchmatch criteria | cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:* | ||
4.0.0CPE matchmatch criteria | cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/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
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.