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CVE-2009-4971

22
FAUCET Score

CVE-2009-4971 describes a critical SQL injection vulnerability in the AJAX Chat (vjchat) extension, versions prior to 0.3.3, for the TYPO3 content management system. This flaw allows unauthenticated remote attackers to execute arbitrary SQL commands, potentially leading to data compromise, manipulation, or denial of service. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network with low attack complexity, posing a significant risk to confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected versions should prioritize patching to mitigate this severe risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.3.2CPE matchmatch criteria
cpe:2.3:a:vincent_tietz:vjchat:*:*:*:*:*:*:*:*
0.2.6CPE matchmatch criteria
cpe:2.3:a:vincent_tietz:vjchat:0.2.6:*:*:*:*:*:*:*
0.2.7CPE matchmatch criteria
cpe:2.3:a:vincent_tietz:vjchat:0.2.7:*:*:*:*:*:*:*
0.3.0CPE matchmatch criteria
cpe:2.3:a:vincent_tietz:vjchat:0.3.0:*:*:*:*:*:*:*
0.3.1CPE matchmatch criteria
cpe:2.3:a:vincent_tietz:vjchat:0.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0105 is in the 38th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

typo3.org / teams/security/security-bulletins/typo3-sa-2009-013
PatchVendor Advisory
securityfocus.com / bid/36141
vupen.com / english/advisories/2009/2411
PatchVendor Advisory