9.8

CVE-2020-5519: litespeedtech openlitespeed Improper Input Validation

CVSS: 9.8v3.1CriticalModified
Published 06-01-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-5519 is a critical (CVSS 9.8) Improper Input Validation vulnerability in litespeedtech openlitespeed. EPSS estimates a 1.20% chance of exploitation in the next 30 days, higher than 67.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-01-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

The WebAdmin Console in OpenLiteSpeed before v1.6.5 does not strictly check request URLs, as demonstrated by the "Server Configuration > External App" screen.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.20%

Chance of exploitation in the next 30 days

Percentile

68%

Versus all other CVEs

30-day change

0.00 pp

From 1.20% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.20%

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

Litespeedtech1 product

1 vendor · 1 product

References

2 links