6.4

CVE-2023-0539: gsplugins gs_insever_portfolio Cross-site Scripting

CVSS: 6.4v3.1MediumModified
Published 27-02-2023Last modified 11-03-2025
Open JSON

Vulnerability summary

CVE-2023-0539 is a medium (CVSS 6.4) Cross-site Scripting vulnerability in gsplugins gs_insever_portfolio. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.4/10
010
Medium · v3.1 (wordfence)
EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 27-02-2023
    PublishedVulnerability first disclosed.
  2. 11-03-2025
    Last modifiedVulnerability information updated.

Description

The GS Insever Portfolio WordPress plugin before 1.4.5 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

0.00 pp

From 0.53% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Gsplugins1 product
Unknown1 product
Wordpress1 product
  • gs-instagram-portfolio≤ 1.4.4 (fixed in 1.4.5)

3 vendors · 3 products

References

2 links