CVE-2021-42077 SQL injection in n/a
SQL injection in PHP Event Calendar allows attackers to execute arbitrary SQL statements, potentially compromising the database and bypassing login authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42077?
CVE-2021-42077 is a critical SQL injection vulnerability in n/a, published on 8 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PHP Event Calendar before 2021-09-03 allows SQL injection, as demonstrated by the /server/ajax/user_manager.php username parameter. This can be used to execute SQL statements directly on the database, allowing an adversary in some cases to completely compromise the database system. It can also be used to bypass the login form.
Weakness: CWE-89
Which versions are affected by CVE-2021-42077?
It affects 1 product.
Products include Kaysongroup Php Event Calendar.
How do I fix CVE-2021-42077?
No fix has been published for CVE-2021-42077 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-2021-42077 being exploited?
There is no known exploitation of CVE-2021-42077 in the wild and no public exploit code.
Sources
Also known as GHSA-7jgw-jw8c-v49c.