7.5

CVE-2021-23937: apache software foundation apache wicket

CVSS: 7.5v3.1HighModified
AliasesGHSA-hmhg-95wh-r699
Published 25-05-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-23937 is a high (CVSS 7.5) vulnerability in apache software foundation apache wicket. EPSS estimates a 4.26% chance of exploitation in the next 30 days, higher than 90.9% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
4.26%
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. 25-05-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A DNS proxy and possible amplification attack vulnerability in WebClientInfo of Apache Wicket allows an attacker to trigger arbitrary DNS lookups from the server when the X-Forwarded-For header is not properly sanitized. This DNS lookup can be engineered to overload an internal DNS server or to slow down request processing of the Apache Wicket application causing a possible denial of service on either the internal infrastructure or the web application itself. This issue affects Apache Wicket Apache Wicket 9.x version 9.2.0 and prior versions; Apache Wicket 8.x version 8.11.0 and prior versions; Apache Wicket 7.x version 7.17.0 and prior versions and Apache Wicket 6.x version 6.2.0 and later versions.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

4.26%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.26% on 18-09-2026

18-09-202618-10-2026
EPSS score
4.26%

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

Apache1 product
  • wicket≥ 6.0.0, ≤ 6.2.0 | ≥ 7.0.0, ≤ 7.17.0 | ≥ 8.0.0, ≤ 8.11.0 | ≥ 9.0.0, ≤ 9.2.0
Apache software foundation1 product
  • apache wicket≥ Apache Wicket 9.x, ≤ 9.2.0 | ≥ Apache Wicket 8.x, ≤ 8.11.0 | ≥ Apache Wicket 7.x, ≤ 7.17.0 | ≥ 6.2.0, < Apache Wicket 6.x*
Org.apache.wicket1 product
  • wicket-core≥ 9.0.0, < 9.3.0 | ≥ 8.0.0, < 8.12.0 | < 7.18.0

3 vendors · 3 products

References

14 links
Show all 14 references