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CVE-2017-9551

20
FAUCET Score

CVE-2017-9551 describes a cross-site scripting (XSS) vulnerability in Mahara versions 15.04.x, 16.04.x, 16.10.x, and 17.04.x. An unauthenticated attacker can inject malicious code into the user registration form, which is then emailed to the user and administrator, and subsequently stored in the new user's account. This vulnerability has a CVSS v3 score of 6.1 (Medium), indicating it can be exploited over the network with low complexity, requiring user interaction, and potentially leading to low impact on confidentiality and integrity. There is no known public exploit code, nor is it listed on the CISA KEV catalog, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
15.04CPE matchmatch criteria
cpe:2.3:a:mahara:mahara:15.04:rc1:*:*:*:*:*:*
15.04CPE matchmatch criteria
cpe:2.3:a:mahara:mahara:15.04:rc2:*:*:*:*:*:*
15.04.0CPE matchmatch criteria
cpe:2.3:a:mahara:mahara:15.04.0:*:*:*:*:*:*:*
15.04.1CPE matchmatch criteria
cpe:2.3:a:mahara:mahara:15.04.1:*:*:*:*:*:*:*
15.04.2CPE matchmatch criteria
cpe:2.3:a:mahara:mahara:15.04.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 51st percentile among its peer group of 26,234 CVEs.

Social Chatter

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

bugs.launchpad.net / mahara/+bug/1697308
Issue TrackingThird Party Advisory
mahara.org / interaction/forum/topic.php
Vendor Advisory