CVE-2022-27308: A stored cross-site scripting (XSS) vulnerability in PHProjekt PhpSimplyGest v1.3.0 allows attackers to execut

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MEDIUM 5.4DOWNGRADE

CVE-2022-27308 is a medium-severity flaw (CVSS 5.4) affecting phprojekt phpsimplygest. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A stored cross-site scripting (XSS) vulnerability in PHProjekt PhpSimplyGest v1.3.0 allows attackers to execute arbitrary web scripts or HTML via a project title.

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	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-05-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: phprojekt phpsimplygest project

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

Am I affected?

Timeline

2022-05-09 18:15 UTCPublished CVE record published
2026-06-17 04:36 UTCUpdated Record last modified

phprojekt phpsimplygest project phprojekt phpsimplygest DOWNGRADE

Affected: 1.3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3.0

1. Check installed version

apt-cache policy phprojekt-phpsimplygest || rpm -q phprojekt-phpsimplygest || phprojekt-phpsimplygest --version

2. No fixed release: DOWNGRADE to a release before 1.3.0 (Debian / Ubuntu)

apt-cache madison phprojekt-phpsimplygest sudo apt install phprojekt-phpsimplygest=<VERSION_BEFORE_1.3.0> sudo apt-mark hold phprojekt-phpsimplygest

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

dnf --showduplicates list phprojekt-phpsimplygest sudo dnf downgrade phprojekt-phpsimplygest-<VERSION_BEFORE_1.3.0> sudo dnf versionlock add phprojekt-phpsimplygest

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.

Exploit-DB: PHProjekt PhpSimplyGest v1.3. - Stored Cross-Site Scripting (XSS)

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-2022-27308?

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

Is CVE-2022-27308 being exploited?

CVE-2022-27308 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-2022-27308 affect?

CVE-2022-27308 affects phprojekt phpsimplygest. Severity is medium (CVSS 5.4). A stored cross-site scripting (XSS) vulnerability in PHProjekt PhpSimplyGest v1.3.0 allows attackers to execute arbitrary web scripts or HTML via a project title.

How urgent is CVE-2022-27308?

Priority 45/100. Public exploit reference

References

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