CVE-2017-20239 — MDwiki Cross-Site Scripting via Location Hash Parameter

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MEDIUM

MDwiki Cross-Site Scripting via Location Hash Parameter

Published Apr 12, 2026

5.1

MEDIUM

CVSS 4.0

EPSS 0.27%

Description

MDwiki contains a cross-site scripting vulnerability that allows remote attackers to execute arbitrary JavaScript by injecting malicious code through the location hash parameter. Attackers can craft URLs with JavaScript payloads in the hash fragment that are parsed and rendered without sanitization, causing the injected scripts to execute in the victim's browser context.

Affected products

Vendor Dynalon Product MDwiki Default
n/a
- Version
  0.6.2
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Dynalon

MDwiki

n/a

Version	Status	Constraints
0.6.2	affected	-

Remediation

No remediation recorded yet.

Metrics

0.27% 0.00266

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00266

Score over time

Apr–Oct 2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.27% (0.00266)	16.73th	v5 (v2026.06.15)
Jun 15, 2026	0.27% (0.00266)	17.71th	v5 (v2026.06.15)
Apr 13, 2026	0.04% (0.00036)	10.88th	v4 (v2025.03.14)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (2)

https://www.exploit-db.com/exploits/46097
exploitVDB Entry
https://www.vulncheck.com/advisories/mdwiki-cross-site-scripting-via-location-hash-parameter
third-party-advisoryThird Party Advisory

Link	Providers	Tags
https://www.exploit-db.com/exploits/46097		exploitVDB Entry
https://www.vulncheck.com/advisories/mdwiki-cross-site-scripting-via-location-hash-parameter		third-party-advisoryThird Party Advisory