CVE-2023-45727

North Grid Proself Improper Restriction of XML External Entity (XXE) Reference Vulnerability

Exploited in attacks High 7.5 Attack chance: 4.8%

What it is

Proself Enterprise/Standard Edition Ver5.62 and earlier, Proself Gateway Edition Ver1.65 and earlier, and Proself Mail Sanitize Edition Ver1.08 and earlier allow a remote unauthenticated attacker to conduct XML External Entity (XXE) attacks. By processing a specially crafted request containing malformed XML data, arbitrary files on the server containing account information may be read by the attacker.

CISA: North Grid Proself Enterprise/Standard, Gateway, and Mail Sanitize contain an improper restriction of XML External Entity (XXE) reference vulnerability, which could allow a remote, unauthenticated attacker to conduct an XXE attack.

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Deadline for US federal agencies: December 24, 2024

Added to the CISA list: December 3, 2024
Published: October 18, 2023
Severity: High 7.5 CVSS 3.1
Chance of attacks in the next 30 days (EPSS): 4.8% in the top 8.1% of all known vulnerabilities
Weakness: CWE-611
More details: NVD · CVE.org · CISA

All references (2)

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.