6.1

CVE-2023-5758: mozilla firefox for ios Cross-site Scripting

CVSS: 6.1v3.1MediumModified
AliasesCGA-g9qq-v796-rgr9CGA-xc37-r2cr-qj9f
Published 24-10-2023Last modified 12-06-2025
Open JSON

Vulnerability summary

CVE-2023-5758 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in mozilla firefox for ios. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.2% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-J8P2-48FR-PP36

Timeline

  1. 24-10-2023
    PublishedVulnerability first disclosed.
  2. 12-06-2025
    Last modifiedVulnerability information updated.

Description

When opening a page in reader mode, the redirect URL could have caused attacker-controlled script to execute in a reflected Cross-Site Scripting (XSS) attack. This vulnerability affects Firefox for iOS < 119.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

0.00 pp

From 0.43% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mozilla2 products
Chainguard1 product
  • firefox-esr< 119.0-r0

2 vendors · 3 products

References

5 links