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CVE-2021-26830

40
FAUCET Score

CVE-2021-26830 is a critical SQL Injection vulnerability affecting Tribalsystems Zenario CMS versions up to 8.8.52729. This flaw allows unauthenticated remote attackers to access the database or delete plugins by manipulating the 'ID' input field in ajax.php within the "Plugin library - delete" module. With a CVSS score of 9.1, it presents a high risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality and integrity. While not listed on CISA's KEV catalog and showing no active exploitation intelligence or significant community discussion, an ExploitDB entry (EDB-49642) confirms the existence of public exploit code for a blind SQL injection.

Impacted Technologies

VendorProductVersion(s)CPE
8.8.52729CPE matchmatch criteria
cpe:2.3:a:tribalsystems:zenario:8.8.52729:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.57%
Probability of exploitation in next 30 days
EPSS Percentile
90.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-49642 · Mar 15, 2021
This CVE's current EPSS score of 0.0457 is in the 84th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: tribalsystems/zenarioFixed in: 8.8.53370

Vendor Advisories (1)

composerGHSA-w4f3-7f7c-x652critical

SQL Injection in tribalsystems/zenario

Mar 18, 2022

References

github.com / TribalSystems/Zenario/releases/tag/8.8.53370
Release NotesThird Party Advisory