CVE-2021-26830

CRITICALNVD 9.19.1—Elevated

9.1

SQL Injection in Tribalsystems Zenario CMS 8.8.52729 allows remote attackers to access the database or delete the plugin. This is accomplished via the ID input field of ajax.php in the Pugin library - delete module.

CVSS v3: 9.1
EG Score: 9.1(medium)
EPSS: 76.4%
KEV: Not listed

Published

April 16, 2021

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/TribalSystems/Zenario/releases/tag/8.8.53370
af854a3a-2127-422b-91ae-364da2661108https://github.com/TribalSystems/Zenario/releases/tag/8.8.53370

Affected Packages

(1 across 1 ecosystem)

Packagist(1)

Package	Vulnerable range	Fixed in	Dependents
tribalsystems/zenario	7.5.40440 ... 8.8 (53 versions)	8.8.53370	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-89SQL Injection

Data Freshness Timeline

(refreshed 11× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 18:12 UTCEG score recompute
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-49642
First seen Mar 15, 2021
Zenario CMS 8.8.53370 - 'id' Blind SQL Injection
Open source ↗

Frequently asked(5)

What is CVE-2021-26830?

CVE-2021-26830 is a critical vulnerability published on April 16, 2021. SQL Injection in Tribalsystems Zenario CMS 8.8.52729 allows remote attackers to access the database or delete the plugin. This is accomplished via the ID input field of ajax.php in the Pugin library - delete module.

When was CVE-2021-26830 disclosed?

CVE-2021-26830 was first published in the National Vulnerability Database on April 16, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-26830 actively exploited?

CVE-2021-26830 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-26830?

CVE-2021-26830 has a CVSS v3 base score of 9.1 (NVD).

How do I remediate CVE-2021-26830?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-26830, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-26830

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Is Your Infrastructure Affected by CVE-2021-26830?

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CVE-2021-26830

📅 Published

🔄 Last Modified

🔗 References (2)