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TI-2021-09016 Aliases CVE-2021-27558GHSA-78qw-m224-h56g

A cross site scripting (XSS) issue in EasyCorp ZenTao 12.5.3 allows remote attackers to…

Priority LOW 29CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A cross site scripting (XSS) issue in EasyCorp ZenTao 12.5.3 allows remote attackers to execute arbitrary web script via various areas such as data-link-creator.

Why it matters now

EPSS 0.00838 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:easycorp:zentao:12.5.3:*:*:*:*:*:*:*12.5.3VulnerableEasyCorp
  • cpe:2.3:a:easycorp:zentao:12.5.3:*:*:*:*:*:*:* Versions 12.5.3 Vulnerable ·EasyCorp

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-27558
  2. 2026-10-03 Alias added: GHSA-78qw-m224-h56g

References

Exploit 1

  • TI-2024-16042 Zentao v18.0 to v18.10 was discovered to contain a remote code execution (RCE)… CVSS 3.1CRITICAL 9.8
  • TI-2024-16039 An arbitrary file upload vulnerability in /upgrade/control.php of ZenTao Community… CVSS 3.1CRITICAL 9.8
  • TI-2023-24012 An issue in ZenTao Community Edition v.18.6 and before, ZenTao Biz v.8.6 and before… CVSS 3.1HIGH 8.8
  • TI-2022-23694 ZenTao 16.4 to 18.0.beta1 is vulnerable to SQL injection. CVSS 3.1HIGH 8.8
  • TI-2023-26980 Zentao versions 4.1.3 and before has a URL redirect vulnerability, which prevents the system from functioning properly. CVSS 3.1MEDIUM 6.1
  • TI-2020-14347 Cross Site Scripting vulnerability found in Zentao allows a remote attacker to execute… CVSS 3.1MEDIUM 6.1
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences