XSS in Thenewsletterplugin Newsletter

CVE-2022-1889

The Newsletter WordPress plugin before 7.4.6 does not escape and sanitise the preheader_text setting, which could allow high privilege users to perform Stored Cross-Site Scripting attacks when the unfilteredhtml is disallowed

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (41.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-1889?
CVE-2022-1889 is a medium-severity vulnerability in Thenewsletterplugin Newsletter, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-06-20.
How severe is CVE-2022-1889?
Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2022-1889 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.