CVE-2021-26723: Jenzabar 9.2.x through 9.2.2 allows /ics?tool=search&query= XSS.

This week

MEDIUM 6.1UPGRADE

CVE-2021-26723 is a medium-severity flaw (CVSS 6.1) affecting jenzabar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Jenzabar 9.2.x through 9.2.2 allows /ics?tool=search&query= XSS.

Why this priority

EPSS top 4%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	12.6% (top 4%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-02-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: jenzabar

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-02-06 06:15 UTCPublished CVE record published
2026-06-17 03:43 UTCUpdated Record last modified

jenzabar jenzabar UPGRADE

Affected: >= 9.2.0 and <= 9.2.2

Fixed in: newer than 9.2.2

Safe to downgrade to: a release before 9.2.0

1. Check installed version

apt-cache policy jenzabar || rpm -q jenzabar || jenzabar --version

2. UPGRADE to newer than 9.2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jenzabar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jenzabar

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 9.2.0 (Debian / Ubuntu)

apt-cache madison jenzabar sudo apt install jenzabar=<VERSION_BEFORE_9.2.0> sudo apt-mark hold jenzabar

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jenzabar sudo dnf downgrade jenzabar-<VERSION_BEFORE_9.2.0> sudo dnf versionlock add jenzabar

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Jenzabar 9.2x-9.2.2 - Cross-Site Scripting

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-2021-26723?

jenzabar: upgrade to newer than 9.2.2. Exact commands for each OS are on this page.

Is CVE-2021-26723 being exploited?

CVE-2021-26723 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-2021-26723 affect?

CVE-2021-26723 affects jenzabar. Severity is medium (CVSS 6.1). Jenzabar 9.2.x through 9.2.2 allows /ics?tool=search&query= XSS.

How urgent is CVE-2021-26723?

Priority 50/100. EPSS top 4%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2018-16778 MEDIUM 6.1 UPGRADE Cross-site scripting (XSS) vulnerability in Jenzabar v8.2.1 through 9.2.0 allows remote attackers to inject ar

References

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