What is CVE-2022-1756?

CVE-2022-1756 is a medium-severity vulnerability in Thenewsletterplugin Newsletter, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-06-13.

How severe is CVE-2022-1756?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2022-1756 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Thenewsletterplugin Newsletter

CVE-2022-1756

The Newsletter WordPress plugin before 7.4.5 does not sanitize and escape the $_SERVER['REQUEST_URI'] before echoing it back in admin pages. Although this uses addslashes, and most modern browsers automatically URLEncode requests, this is still vulnerable to Reflected XSS in older browsers such as Internet Explorer 9 or below.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.018 (76.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Thenewsletterplugin Newsletter
Unknown Newsletter – Send Awesome Emails From Wordpress — versions 7.4.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-1756?: CVE-2022-1756 is a medium-severity vulnerability in Thenewsletterplugin Newsletter, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-06-13.
How severe is CVE-2022-1756?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2022-1756 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.