CVE-2026-30251: A reflected cross-site scripting (XSS) vulnerability in the login_newpwd.php endpoint of Interzen Consulting S

Routine

MEDIUM 6.1DOWNGRADE

CVE-2026-30251 is a medium-severity flaw (CVSS 6.1) affecting zenshare suite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A reflected cross-site scripting (XSS) vulnerability in the login_newpwd.php endpoint of Interzen Consulting S.r.l ZenShare Suite v17.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL injected into the codice_azienda parameter.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 89%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-04-02
Last modified	2026-07-24

Publisher (CNA): MITRE · Vendor: interzen

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-02 21:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

interzen zenshare suite DOWNGRADE

Affected: 17.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 17.0

1. Check installed version

apt-cache policy zenshare-suite || rpm -q zenshare-suite || zenshare-suite --version

2. No fixed release: DOWNGRADE to a release before 17.0 (Debian / Ubuntu)

apt-cache madison zenshare-suite sudo apt install zenshare-suite=<VERSION_BEFORE_17.0> sudo apt-mark hold zenshare-suite

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

dnf --showduplicates list zenshare-suite sudo dnf downgrade zenshare-suite-<VERSION_BEFORE_17.0> sudo dnf versionlock add zenshare-suite

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-2026-30251?

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

Is CVE-2026-30251 being exploited?

CVE-2026-30251 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-2026-30251 affect?

CVE-2026-30251 affects zenshare suite. Severity is medium (CVSS 6.1). A reflected cross-site scripting (XSS) vulnerability in the login_newpwd.php endpoint of Interzen Consulting S.r.l ZenShare Suite v17.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL

How urgent is CVE-2026-30251?

Priority 24/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

References

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