CVE-2020-36543: A vulnerability, which was classified as critical, was found in SialWeb CMS

This month

MEDIUM 6.3MITIGATE

CVE-2020-36543 is a medium-severity flaw (CVSS 6.3) affecting sialweb cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, was found in SialWeb CMS. This affects an unknown part of the file /about.php. The manipulation of the argument Id leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-06-08
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: sialweb

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

Am I affected?

Timeline

2022-06-08 09:15 UTCPublished CVE record published
2026-06-17 03:15 UTCUpdated Record last modified

sialweb sialweb cms MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2020-36543?

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

Is CVE-2020-36543 being exploited?

CVE-2020-36543 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-2020-36543 affect?

CVE-2020-36543 affects sialweb cms. Severity is medium (CVSS 6.3). A vulnerability, which was classified as critical, was found in SialWeb CMS. This affects an unknown part of the file /about.php. The manipulation of the argument Id leads to sql injection. It is possible to initiate the attack remotely. Th

How urgent is CVE-2020-36543?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2020-36544 LOW 3.5 MITIGATE A vulnerability has been found in SialWeb CMS and classified as problematic

References

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