CVE-2018-20612: UWA 2.3.11 allows index.php?g=admin&c=admin&a=add_admin_do CSRF.

This month

HIGH 8.8DOWNGRADE

CVE-2018-20612 is a high-severity flaw (CVSS 8.8) affecting universal website asthis. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

UWA 2.3.11 allows index.php?g=admin&c=admin&a=add_admin_do CSRF.

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 57%)
CISA exploited list	No
Weakness	CWE-352
Published	2018-12-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: asthis

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

Am I affected?

Timeline

2018-12-30 21:29 UTCPublished CVE record published
2026-06-17 01:53 UTCUpdated Record last modified

asthis universal website asthis DOWNGRADE

Affected: 2.3.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.11

1. Check installed version

apt-cache policy universal-website-asthis || rpm -q universal-website-asthis || universal-website-asthis --version

2. No fixed release: DOWNGRADE to a release before 2.3.11 (Debian / Ubuntu)

apt-cache madison universal-website-asthis sudo apt install universal-website-asthis=<VERSION_BEFORE_2.3.11> sudo apt-mark hold universal-website-asthis

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

dnf --showduplicates list universal-website-asthis sudo dnf downgrade universal-website-asthis-<VERSION_BEFORE_2.3.11> sudo dnf versionlock add universal-website-asthis

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-2018-20612?

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

Is CVE-2018-20612 being exploited?

CVE-2018-20612 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-2018-20612 affect?

CVE-2018-20612 affects universal website asthis. Severity is high (CVSS 8.8). UWA 2.3.11 allows index.php?g=admin&c=admin&a=add_admin_do CSRF.

How urgent is CVE-2018-20612?

Priority 46/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs