TI-2021-12770 Aliases CVE-2021-33231 GHSA-v477-cfqw-jjcg

Cross Site Scripting (XSS) vulnerability in New equipment page in EasyVista Service…

MEDIUM 58CWE-79Published 2022-10-20 · Updated 2026-07-09

Key facts

Attack vector: Network
Privileges required: Low
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 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

Cross Site Scripting (XSS) vulnerability in New equipment page in EasyVista Service Manager 2018.1.181.1 allows remote attackers to run arbitrary code via the notes field.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00666 52nd 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

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:easyvista:service_manager:2018.1.181.1:::::::*	2018.1.181.1	Vulnerable	Easyvista

cpe:2.3:a:easyvista:service_manager:2018.1.181.1:*:*:*:*:*:*:* Versions 2018.1.181.1 Vulnerable ·Easyvista

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-33231
2026-10-03 Alias added: GHSA-v477-cfqw-jjcg
2026-10-18 EPSS moved to the 50th–90th percentile

References

Exploit 1

https://armysick.github.io/cve-2021-33231/

TI-2022-18107 An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03. CVSS 3.1CRITICAL 9.6
TI-2022-18109 An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03. CVSS 3.1HIGH 8.8
TI-2022-18108 An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03. CVSS 3.1HIGH 8.2
TI-2022-18106 An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03 It is prone to… CVSS 3.1MEDIUM 5.4

Sources

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