VDB-112226 · CVE-2018-5773 · Qualys 277558

markdown2 up to 2.3.5 Escape cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in markdown2 up to 2.3.5 and classified as problematic. Affected by this issue is some unknown functionality of the component Escape Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity.

The bug was discovered 01/18/2018. The weakness was released 01/18/2018 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2018-5773 since 01/18/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 118048 (Fedora 27 : python-markdown2 (2018-e52160d0bc)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277558 (Fedora Security Update for python-markdown2 (FEDORA-2018-dd98177cad)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 10 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118048).



CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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NVD Base Score: 6.1
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Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 118048
Nessus Name: Fedora 27 : python-markdown2 (2018-e52160d0bc)
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

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01/18/2018 🔍
01/18/2018 +0 days 🔍
01/18/2018 +0 days 🔍
01/18/2018 +0 days 🔍
01/19/2018 +1 days 🔍
10/10/2018 +264 days 🔍
10/11/2018 +1 days 🔍
02/02/2023 +1575 days 🔍


Advisory: FEDORA-2018-e52160d0bc
Status: Not defined

CVE: CVE-2018-5773 (🔍)


Created: 01/19/2018 07:59 AM
Updated: 02/02/2023 08:57 AM
Changes: 01/19/2018 07:59 AM (61), 12/24/2019 09:58 AM (10), 02/02/2023 08:56 AM (4), 02/02/2023 08:57 AM (1)
Complete: 🔍


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