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Fencer Intel
medium 4.3

CVE-2010-2088 json

ASP.NET in Microsoft .NET 3.5 does not properly handle an unencrypted view state, which allows remote attackers to conduct cross-site scrip…

published 16y ago modified 4mo ago also EUVD-2010-2105

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.0%
EPSS 9.0% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

ASP.NET in Microsoft .NET 3.5 does not properly handle an unencrypted view state, which allows remote attackers to conduct cross-site scripting (XSS) attacks against the form control via the __VIEWSTATE parameter.

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Exploit prediction

9.00% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • trustwave.com https://www.trustwave.com/spiderlabs/advisories/TWSL2010-001.txt referenced PoC, tagged "exploit" by a source, unverified
  • blackhat.com http://www.blackhat.com/presentations/bh-dc-10/Byrne_David/BlackHat-DC-2010-Byrne-SGUI-slides.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.