CVE-2019-20524: ilchCMS 2.1.23 allows XSS via the index.php/partner/index Banner parameter.

This month

MEDIUM 6.1DOWNGRADE

CVE-2019-20524 is a medium-severity flaw (CVSS 6.1) affecting ilch cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ilchCMS 2.1.23 allows XSS via the index.php/partner/index Banner parameter.

Why this priority

Public exploit reference

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	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-03-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ilch

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

Am I affected?

Timeline

2020-03-19 14:15 UTCPublished CVE record published
2026-06-17 02:30 UTCUpdated Record last modified

ilch ilch cms DOWNGRADE

Affected: 2.1.23

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.23

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1.23 (Debian / Ubuntu)

apt-cache madison ilch-cms sudo apt install ilch-cms=<VERSION_BEFORE_2.1.23> sudo apt-mark hold ilch-cms

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

dnf --showduplicates list ilch-cms sudo dnf downgrade ilch-cms-<VERSION_BEFORE_2.1.23> sudo dnf versionlock add ilch-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-2019-20524?

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

Is CVE-2019-20524 being exploited?

CVE-2019-20524 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-2019-20524 affect?

CVE-2019-20524 affects ilch cms. Severity is medium (CVSS 6.1). ilchCMS 2.1.23 allows XSS via the index.php/partner/index Banner parameter.

How urgent is CVE-2019-20524?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2021-27352 MEDIUM 5.4 DOWNGRADE An open redirect vulnerability in Ilch CMS version 2.1.42 allows attackers to redirect users to an attacker's
CVE-2019-20523 MEDIUM 6.1 DOWNGRADE ilchCMS 2.1.23 allows XSS via the index.php/partner/index Name parameter.
CVE-2019-20522 MEDIUM 6.1 DOWNGRADE ilchCMS 2.1.23 allows XSS via the index.php/partner/index Link parameter.
CVE-2019-17046 HIGH 7.2 DOWNGRADE Ilch 2.1.22 allows remote code execution because php is listed under "Allowed files" on the index.php/admin/me
CVE-2019-17045 MEDIUM 4.8 DOWNGRADE Ilch 2.1.22 allows stored XSS via the title, text, or email id to the Jobs Tab.

References

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