CVE-2020-26280
OpenSlides Cross-Site Scripting Vulnerability
Description
OpenSlides is a free, Web-based presentation and assembly system for managing and projecting agenda, motions, and elections of assemblies. OpenSlides version 3.2, due to unsufficient user input validation and escaping, it is vulnerable to persistant cross-site scripting (XSS). In the web applications users can enter rich text in various places, e.g. for personal notes or in motions. These fields can be used to store arbitrary JavaScript Code that will be executed when other users read the respective text. An attacker could utilize this vulnerability be used to manipulate votes of other users, hijack the moderators session or simply disturb the meeting. The vulnerability was introduced with 6eae497abeab234418dfbd9d299e831eff86ed45 on 16.04.2020, which is first included in the 3.2 release. It has been patched in version 3.3 ( in commit f3809fc8a97ee305d721662a75f788f9e9d21938, merged in master on 20.11.2020).
INFO
Published Date :
Dec. 18, 2020, 7:15 p.m.
Last Modified :
Dec. 22, 2020, 8:11 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
Exploitability Score :
2.3
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-26280.
| URL | Resource |
|---|---|
| https://github.com/OpenSlides/OpenSlides/blob/master/CHANGELOG.rst#version-33-2020-12-18 | Release Notes Third Party Advisory |
| https://github.com/OpenSlides/OpenSlides/commit/f3809fc8a97ee305d721662a75f788f9e9d21938 | Patch Third Party Advisory |
| https://github.com/OpenSlides/OpenSlides/pull/5714 | Patch Third Party Advisory |
| https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-w5wr-98qm-jx92 | Third Party Advisory |
| https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-043.txt | Broken Link |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-26280 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26280 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Dec. 22, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L Changed Reference Type https://github.com/OpenSlides/OpenSlides/blob/master/CHANGELOG.rst#version-33-2020-12-18 No Types Assigned https://github.com/OpenSlides/OpenSlides/blob/master/CHANGELOG.rst#version-33-2020-12-18 Release Notes, Third Party Advisory Changed Reference Type https://github.com/OpenSlides/OpenSlides/commit/f3809fc8a97ee305d721662a75f788f9e9d21938 No Types Assigned https://github.com/OpenSlides/OpenSlides/commit/f3809fc8a97ee305d721662a75f788f9e9d21938 Patch, Third Party Advisory Changed Reference Type https://github.com/OpenSlides/OpenSlides/pull/5714 No Types Assigned https://github.com/OpenSlides/OpenSlides/pull/5714 Patch, Third Party Advisory Changed Reference Type https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-w5wr-98qm-jx92 No Types Assigned https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-w5wr-98qm-jx92 Third Party Advisory Changed Reference Type https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-043.txt No Types Assigned https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-043.txt Broken Link Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:openslides:openslides:3.2:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26280 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-26280
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.00%
score
0.47036
percentile