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CVE

CVE-2026-28281

InstantCMS has Multiple CSRF Vulnerabilities
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CVE

CVE-2026-28281

InstantCMS has Multiple CSRF Vulnerabilities

InstantCMS is a free and open source content management system. Prior to 2.18.1, InstantCMS does not validate CSRF tokens, which allows attackers grant moderator privileges to users, execute scheduled tasks, move posts to trash, and accept friend requests on behalf of the user. This vulnerability is fixed in 2.18.1.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28281.json, https://github.com/instantsoft/icms2/security/advisories/GHSA-pp43-262q-h73m, https://nvd.nist.gov/vuln/detail/CVE-2026-28281

Severity

7.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.1
EPSS Probability
0.00027%
EPSS Percentile
0.07877%
Introduced Version
0
Fix Available
6e3ed9696cd9a77abd00aa36177ef9ad7ca98796

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