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CVE-2017-12849

20
FAUCET Score

CVE-2017-12849 is a medium-severity vulnerability affecting SilverStripe CMS versions before 3.5.5 and 3.6.x before 3.6.1. It allows remote attackers to enumerate users through timing attacks on login and password reset forms due to response discrepancies. The attack vector is network-based with low complexity, requiring no user interaction, but only leads to a low impact on confidentiality. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.5.4CPE matchmatch criteria
cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:*
3.6.0CPE matchmatch criteria
cpe:2.3:a:silverstripe:silverstripe:3.6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 40th percentile among its peer group of 23,723 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: silverstripe/cmsFixed in: 3.5.5
composerpatch availablevia ghsa
Product: silverstripe/cmsFixed in: 3.6.1

Vendor Advisories (1)

composerGHSA-fwhr-g5r4-xgxfmedium

Silverstripe CMS User Enumeration

May 17, 2022

References

silverstripe.org / download/security-releases/ss-2017-005
Vendor Advisory