CVE-2021-33231: Cross Site Scripting (XSS) vulnerability in New equipment page in EasyVista Service Manager 2018.1.181.1 allow

Routine

MEDIUM 5.4DOWNGRADE

CVE-2021-33231 is a medium-severity flaw (CVSS 5.4) affecting service manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-10-20
Last modified	2026-07-09

Publisher (CNA): MITRE · Vendor: easyvista

Last updated 2026-07-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-10-20 11:15 UTCPublished CVE record published
2026-07-09 01:16 UTCUpdated Record last modified

easyvista service manager DOWNGRADE

Affected: 2018.1.181.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2018.1.181.1

1. Check installed version

apt-cache policy service-manager || rpm -q service-manager || service-manager --version

2. No fixed release: DOWNGRADE to a release before 2018.1.181.1 (Debian / Ubuntu)

apt-cache madison service-manager sudo apt install service-manager=<VERSION_BEFORE_2018.1.181.1> sudo apt-mark hold service-manager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list service-manager sudo dnf downgrade service-manager-<VERSION_BEFORE_2018.1.181.1> sudo dnf versionlock add service-manager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-33231?

service manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-33231 being exploited?

CVE-2021-33231 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-33231 affect?

CVE-2021-33231 affects service manager. Severity is medium (CVSS 5.4). 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.

How urgent is CVE-2021-33231?

Priority 37/100. Public exploit reference

Related CVEs

CVE-2022-38492 HIGH 7.7 DOWNGRADE An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03
CVE-2022-38491 HIGH 8.2 DOWNGRADE An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03
CVE-2022-38490 CRITICAL 9.6 DOWNGRADE An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03
CVE-2022-38489 MEDIUM 4.8 DOWNGRADE An issue was discovered in EasyVista 2020.2.125.3 and 2022.1.109.0.03 It is prone to stored Cross-site Scripti

References

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