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CVE-2017-15612

21
FAUCET Score

CVE-2017-15612 describes a cross-site scripting (XSS) vulnerability in Mistune 0.7.4, specifically within its mistune.py component, affecting the escape and autolink functions. This medium-severity vulnerability (CVSS 6.1) can be triggered by an attacker via unexpected newlines (e.g., in "java\nscript:") or crafted email addresses, requiring user interaction but potentially leading to low impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.7.4CPE matchmatch criteria
cpe:2.3:a:mistune_project:mistune:0.7.4:*:*:*:*:*:*:*

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
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 68th percentile among its peer group of 26,236 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: mistuneFixed in: 0.8

Vendor Advisories (1)

pipGHSA-hpv5-v8g5-c864medium

Cross-site Scripting in Mistune

May 17, 2022

References

github.com / lepture/mistune/pull/140
ExploitIssue TrackingPatchThird Party Advisory