CVE-2021-42655 SQL injection in SiteServer CMS

High 8.8 Published Updated

Attackers can execute arbitrary SQL commands in SiteServer CMS, potentially reading or modifying database contents.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-42655?

CVE-2021-42655 is a high-severity SQL injection vulnerability in n/a, published on 24 May 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

SiteServer CMS V6.15.51 is affected by a SQL injection vulnerability.

Weakness: CWE-89

Which versions are affected by CVE-2021-42655?

2 open source packages ship an affected version, including SSCMS. It affects 1 product.

PackageAffectedFixed in
SSCMS NuGetAll versions to 6.15.51None
SSCMS NuGetAll versions to 6.15.51None

Products include Sscms Siteserver Cms.

How do I fix CVE-2021-42655?

No fix has been published for CVE-2021-42655 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2021-42655 being exploited?

There is no known exploitation of CVE-2021-42655 in the wild and no public exploit code.

Sources

Also known as GHSA-5xr5-v2h7-2w7w.

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