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.

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)

Published 2022-06-20 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.006 (46.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Thenewsletterplugin Newsletter
Newsletter – Send Awesome Emails From WordPress — versions 7.4.6

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

wpscan.com/vulnerability/ee3832e2-ce40-4063-a23e-44c7f7f5f46a (Exploit, Third Party Advisory)

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.