4.3

CVE-2008-3842: microsoft .net_framework Cross-site Scripting

CVSS: 4.3v2.0MediumModified
Published 27-08-2008Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2008-3842 is a medium (CVSS 4.3) Cross-site Scripting vulnerability in microsoft .net_framework. EPSS estimates a 20.42% chance of exploitation in the next 30 days, higher than 97.4% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
20.42%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-08-2008
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

Request Validation (aka the ValidateRequest filters) in ASP.NET in Microsoft .NET Framework without the MS07-040 update does not properly detect dangerous client input, which allows remote attackers to conduct cross-site scripting (XSS) attacks, as demonstrated by a query string containing a "</" (less-than slash) sequence.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

20.42%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

0.00 pp

From 20.42% on 20-09-2026

20-09-202620-10-2026
EPSS score
20.42%

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

Microsoft1 product

1 vendor · 1 product

References

4 links