What is CVE-2022-1558?

CVE-2022-1558 is a medium-severity vulnerability in Curtain Project, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-05-23.

How severe is CVE-2022-1558?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2022-1558 known to be exploited?

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

XSS in Curtain Project

CVE-2022-1558

The Curtain WordPress plugin through 1.0.2 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-05-23 · 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: 0.010 (61.3th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Curtain Project
Curtain — versions 1.0.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/0414dad4-e90b-4122-8b77-a8a958ab824d (Exploit, Third Party Advisory)
packetstormsecurity.com/files/166839/ (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2022-1558?: CVE-2022-1558 is a medium-severity vulnerability in Curtain Project, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-05-23.
How severe is CVE-2022-1558?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2022-1558 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.