CVE-2018-14583: xyhai.php?s=/Auth/addUser in XYHCMS 3.5 allows CSRF to add a background administrator account.

This month

HIGH 8.8DOWNGRADE

CVE-2018-14583 is a high-severity flaw (CVSS 8.8) affecting xyhcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

xyhai.php?s=/Auth/addUser in XYHCMS 3.5 allows CSRF to add a background administrator account.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
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-352
Published	2018-07-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xyhcms

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

Am I affected?

Timeline

2018-07-24 16:29 UTCPublished CVE record published
2026-06-17 01:41 UTCUpdated Record last modified

xyhcms xyhcms DOWNGRADE

Affected: 3.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.5 (Debian / Ubuntu)

apt-cache madison xyhcms sudo apt install xyhcms=<VERSION_BEFORE_3.5> sudo apt-mark hold xyhcms

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

dnf --showduplicates list xyhcms sudo dnf downgrade xyhcms-<VERSION_BEFORE_3.5> sudo dnf versionlock add xyhcms

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-2018-14583?

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

Is CVE-2018-14583 being exploited?

CVE-2018-14583 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-2018-14583 affect?

CVE-2018-14583 affects xyhcms. Severity is high (CVSS 8.8). xyhai.php?s=/Auth/addUser in XYHCMS 3.5 allows CSRF to add a background administrator account.

How urgent is CVE-2018-14583?

Priority 46/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2020-20586 MEDIUM 4.5 DOWNGRADE A cross site request forgery (CSRF) vulnerability in the /xyhai.php?s=/Auth/editUser URI of XYHCMS V3.6 allows
CVE-2020-21656 MEDIUM 5.4 DOWNGRADE XYHCMS v3.6 contains a stored cross-site scripting (XSS) vulnerability in the component xyhai.php?s=/Link/inde
CVE-2018-10128 MEDIUM 6.1 DOWNGRADE An issue was discovered in XYHCMS 3.5
CVE-2018-10127 HIGH 8.8 DOWNGRADE An issue was discovered in XYHCMS 3.5

References

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