CVE-2023-36291: Cross Site Scripting vulnerability in Maxsite CMS v.108.7 allows a remote attacker to execute arbitrary code v

Routine

MEDIUM 6.1DOWNGRADE

CVE-2023-36291 is a medium-severity flaw (CVSS 6.1) affecting maxsite cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross Site Scripting vulnerability in Maxsite CMS v.108.7 allows a remote attacker to execute arbitrary code via the f_content parameter in the admin/page_new file.

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	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-07-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: maxsite

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

Am I affected?

Timeline

2023-07-03 21:15 UTCPublished CVE record published
2026-06-17 06:05 UTCUpdated Record last modified

maxsite maxsite cms DOWNGRADE

Affected: 108.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 108.7

1. Check installed version

apt-cache policy maxsite-cms || rpm -q maxsite-cms || maxsite-cms --version

2. No fixed release: DOWNGRADE to a release before 108.7 (Debian / Ubuntu)

apt-cache madison maxsite-cms sudo apt install maxsite-cms=<VERSION_BEFORE_108.7> sudo apt-mark hold maxsite-cms

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

dnf --showduplicates list maxsite-cms sudo dnf downgrade maxsite-cms-<VERSION_BEFORE_108.7> sudo dnf versionlock add maxsite-cms

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-2023-36291?

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

Is CVE-2023-36291 being exploited?

CVE-2023-36291 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-2023-36291 affect?

CVE-2023-36291 affects maxsite cms. Severity is medium (CVSS 6.1). Cross Site Scripting vulnerability in Maxsite CMS v.108.7 allows a remote attacker to execute arbitrary code via the f_content parameter in the admin/page_new file.

How urgent is CVE-2023-36291?

Priority 32/100. No elevated risk signals yet.

Related CVEs

CVE-2025-12346 MEDIUM 6.3 UPGRADE A vulnerability was detected in MaxSite CMS up to 109
CVE-2025-12347 MEDIUM 6.3 UPGRADE A flaw has been found in MaxSite CMS up to 109

References

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