CVE-2017-7251

Pi Cross-site Scripting vulnerability

6.1 MediumFix available

A Cross-Site Scripting (XSS) was discovered in pi-engine/pi 2.5.0. The vulnerability exists due to insufficient filtration of user-supplied data (preview) passed to the "pi-develop/www/script/editor/markitup/preview/markdown.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.98%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 6.1

Record: CVE-2017-7251
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-7251
Updated: 2026-11-02

EUVDEUVD-2022-3447 No score

Record: EUVD-2022-3447
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9v3w-m552-m6ff 6.1

Pi Cross-site Scripting vulnerability

A Cross-Site Scripting (XSS) was discovered in pi-engine/pi 2.5.0. The vulnerability exists due to insufficient filtration of user-supplied data (preview) passed to the pi-develop/www/script/editor/markitup/preview/markdown.php URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Record: GHSA-9v3w-m552-m6ff
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

Record: CVE-2017-7251
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-9v3w-m552-m6ff 6.1

Pi Cross-site Scripting vulnerability

Record: GHSA-9v3w-m552-m6ff
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

piengine pi

Affected packages

Affected packages
Package	Affected	Fixed
`pi/pi` Packagist	through 2.5.0	2.6.0-alpha1
`pi/pi` Packagist	before 2.6.0-alpha1	2.6.0-alpha1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-7251 is a medium vulnerability (CVSS 6.1) in Piengine Pi, published March 23, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.98%, the 62nd percentile. Fixed in pi/pi 2.6.0-alpha1.