CVE-2026-28803 impacts Maykinmedia Open Forms versions prior to 3.3.13 and 3.4.5, where a flaw in the cosigning process allows authenticated users to guess or modify submission reference codes. This vulnerability enables attackers to access arbitrary form submissions, resulting in a high confidentiality impact. Rated with a CVSSv3 score of 6.5 (Medium), its exploitation requires low privileges but has low attack complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.3.13CPE matchmatch criteria | cpe:2.3:a:maykinmedia:open_forms:*:*:*:*:*:*:*:* | ||
>= 3.4.0, < 3.4.5CPE matchmatch criteria | cpe:2.3:a:maykinmedia:open_forms:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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.
Remediation records are not available for this CVE.