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NVD Vulnerability Details :
CVE-2026-28281
Analyzed
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-10 Mar, 2026 | 17:38
Updated At-13 Mar, 2026 | 16:19

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.1HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
Type: Secondary
Version: 3.1
Base score: 7.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
CPE Matches
instantcms
instantcms
>>instantcms>>Versions before 2.18.1(exclusive)
cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-352Primarysecurity-advisories@github.com
CWE ID: CWE-352
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/instantsoft/icms2/security/advisories/GHSA-pp43-262q-h73msecurity-advisories@github.com
Exploit
Mitigation
Vendor Advisory
Hyperlink: https://github.com/instantsoft/icms2/security/advisories/GHSA-pp43-262q-h73m
Source: security-advisories@github.com
Resource:
Exploit
Mitigation
Vendor Advisory
Change History
0Changes found
Details not found