CVE-2020-20131: LaraCMS v1.0.1 contains a stored cross-site scripting (XSS) vulnerability which allows atackers to execute arb

Routine

MEDIUM 5.4DOWNGRADE

CVE-2020-20131 is a medium-severity flaw (CVSS 5.4) affecting laracms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

LaraCMS v1.0.1 contains a stored cross-site scripting (XSS) vulnerability which allows atackers to execute arbitrary web scripts or HTML via a crafted payload in the page management module.

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	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-09-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: laracms project

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

Am I affected?

Timeline

2021-09-29 22:15 UTCPublished CVE record published
2026-06-17 03:02 UTCUpdated Record last modified

laracms project laracms DOWNGRADE

Affected: 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.1 (Debian / Ubuntu)

apt-cache madison laracms sudo apt install laracms=<VERSION_BEFORE_1.0.1> sudo apt-mark hold laracms

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

dnf --showduplicates list laracms sudo dnf downgrade laracms-<VERSION_BEFORE_1.0.1> sudo dnf versionlock add laracms

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-2020-20131?

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

Is CVE-2020-20131 being exploited?

CVE-2020-20131 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-2020-20131 affect?

CVE-2020-20131 affects laracms. Severity is medium (CVSS 5.4). LaraCMS v1.0.1 contains a stored cross-site scripting (XSS) vulnerability which allows atackers to execute arbitrary web scripts or HTML via a crafted payload in the page management module.

How urgent is CVE-2020-20131?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2020-20129 MEDIUM 5.4 DOWNGRADE LaraCMS v1.0.1 contains a stored cross-site scripting (XSS) vulnerability which allows attackers to execute ar
CVE-2020-20128 HIGH 7.5 DOWNGRADE LaraCMS v1.0.1 transmits sensitive information in cleartext which can be intercepted by attackers.

References

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