CVE-2020-15943 Missing authorization in n/a

High 8.1 Published Updated

Authenticated attackers can bypass privilege checks to read and modify other users' Gantt-Chart configurations, potentially injecting XSS payloads into their dashboards.

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-2020-15943?

CVE-2020-15943 is a high-severity missing authorization vulnerability in n/a, published on 4 Aug 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in the Gantt-Chart module before 5.5.4 for Jira. Due to a missing privilege check, it is possible to read and write to the module configuration of other users. This can also be used to deliver an XSS payload to other users' dashboards. To exploit this vulnerability, an attacker has to be authenticated.

Weakness: CWE-862, CWE-79

Which versions are affected by CVE-2020-15943?

It affects 1 product.

Products include Gantt-Chart Project Gantt-Chart.

How do I fix CVE-2020-15943?

No fix has been published for CVE-2020-15943 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-15943 being exploited?

There is no known exploitation of CVE-2020-15943 in the wild and no public exploit code.

Sources

Also known as GHSA-h7g5-wh6v-fwfq.

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