CVE-2020-35677 Cross-site scripting in n/a
Stored XSS in BigProf Online Invoicing System allows attackers to inject scripts via group creation, exploiting missing CSRF protection to bypass admin-only restrictions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-35677?
CVE-2020-35677 is a medium-severity cross-site scripting vulnerability in n/a, published on 24 Dec 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
BigProf Online Invoicing System before 4.0 fails to adequately sanitize fields for HTML characters upon an administrator using admin/pageEditGroup.php to create a new group, resulting in Stored XSS. The caveat here is that an attacker would need administrative privileges in order to create the payload. One might think this completely mitigates the privilege-escalation impact as there is only one high-privileged role. However, it was discovered that the endpoint responsible for creating the group lacks CSRF protection.
Which versions are affected by CVE-2020-35677?
It affects 1 product.
Products include Bigprof Online Invoicing System.
How do I fix CVE-2020-35677?
No fix has been published for CVE-2020-35677 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2020-35677 being exploited?
There is no known exploitation of CVE-2020-35677 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-g3q9-p77m-rp7m.