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CVE-2013-4103

Cryptocat before 2.0.22 has Remote Script Injection due to improperly sanitizing user input

9.8 CriticalPublic exploit

Cryptocat before 2.0.22 has Remote Script Injection due to improperly sanitizing user input

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

6.87%Down 2.1 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

Cryptocat before 2.0.22 has Remote Script Injection due to improperly sanitizing user input

Record
CVE-2013-4103
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

Cryptocat before 2.0.22 has Remote Script Injection due to improperly sanitizing user input

Record
CVE-2013-4103
Updated
2026-11-02
EUVDEUVD-2013-4034 No score

Cryptocat before 2.0.22 has Remote Script Injection due to improperly sanitizing user input

Record
EUVD-2013-4034
Updated
2026-11-03
GitHub AdvisoriesGHSA-rc86-mhm5-qh6p No score

Cryptocat before 2.0.22 has Remote Script Injection due to improperly sanitizing user input

Cryptocat before 2.0.22 has Remote Script Injection due to improperly sanitizing user input

Record
GHSA-rc86-mhm5-qh6p
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBCryptocat 2.0.22 - Arbitrary Script Injection2012-11-07

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2013-4103 is a critical vulnerability (CVSS 9.8) in Cryptocat Project Cryptocat, published November 4, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 6.87%, the 94th percentile. No source names a fixed version.

References

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