CVE-2021-27673
reflected XSS in tribalsystems/zenario
Cross Site Scripting (XSS) in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting arbitrary HTML into the "cID" parameter when creating a new HTML component.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Cross Site Scripting (XSS) in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting arbitrary HTML into the "cID" parameter when creating a new HTML component.
- Record
CVE-2021-27673- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Cross Site Scripting (XSS) in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting arbitrary HTML into the "cID" parameter when creating a new HTML component.
- Record
CVE-2021-27673- Updated
- 2026-11-02
EUVDEUVD-2021-1293 No score
Cross Site Scripting (XSS) in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting arbitrary HTML into the "cID" parameter when creating a new HTML component.
- Record
EUVD-2021-1293- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8hcm-jj4x-4gmr
reflected XSS in tribalsystems/zenario
Reflected XSS in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting into the "cID" parameter when creating a new HTML component.
- Record
GHSA-8hcm-jj4x-4gmr- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-8hcm-jj4x-4gmr
reflected XSS in tribalsystems/zenario
Reflected XSS in the "admin_boxes.ajax.php" component of Tribal Systems Zenario CMS v8.8.52729 allows remote attackers to execute arbitrary code by injecting into the "cID" parameter when creating a new HTML component.
- Record
GHSA-8hcm-jj4x-4gmr- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
tribalsystems/zenarioPackagist |
before 8.8.53370 | 8.8.53370 |
tribalsystems/zenarioPackagist |
before 8.8.53370, plus listed versions 7.5.404407.5.410067.5.414997.5.416337.5.42085 Show 45 moreShow less7.5.429907.5.471807.6.415047.6.416337.6.420857.6.429907.6.471807.7.426827.7.429637.7.429907.7.442237.7.471807.7.473697.7.485838.0.442378.0.442738.0.442948.0.445218.0.450328.0.452508.0.455298.0.471808.0.485838.1.455308.1.456988.1.460898.1.464338.1.466158.1.471808.1.473698.1.485838.2.464368.2.466148.2.471808.2.473698.2.479928.2.485838.3.479978.3.485838.3.505648.4.505658.4.513408.5.505678.5.508378.5.51340 |
8.8.53370 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-27673 is a medium vulnerability (CVSS 4.8) in Tribalsystems Zenario, published April 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.09%, the 65th percentile. Fixed in tribalsystems/zenario 8.8.53370.
References
deadsh0t.medium.com/blind-error-based-authenticated-sql-injection-on-zenario-8-8-52729-cms-d4705534df38
packetstormsecurity.com/files/163083/Zenario-CMS-8.8.52729-SQL-Injection.html
nvd.nist.gov/vuln/detail/CVE-2021-27673
github.com/TribalSystems/Zenario/releases/tag/8.8.53370
Left out here: 3 versions. The JSON record has them.