LiveActive security incident?Get immediate response
CVE archive

February 2021

Browse CVE records published in February 2021, with severity, affected products, CWE, KEV, and source-backed vulnerability context.

Showing 50 of 2047 matching CVEs · Page 10 of 41.

Medium · CVSS 6.1

CVE-2021-23980: A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in a...

A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tags style, title, noscript, script, textarea, noframes, iframe, or xmp in allowed tags the keyword argument strip_comments=False Note: none of the above tags are in the default allowed tags and strip_comments defaults to True.

Published Feb 16, 2023 · Updated Mar 19, 2025

High · CVSS 8.8

CVE-2021-33926: An issue in Plone CMS v.

An issue in Plone CMS v. 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1rc2, 5.1rc1, 5.1b4, 5.1b3, 5.1b2, 5.1a2, 5.1a1, 5.1.7, 5.1.6, 5.1.5, 5.1.4, 5.1.2, 5.1.1 5.1, 5.0rc3, 5.0rc2, 5.0rc1, 5.0.9, 5.0.8, 5.0.7, 5.0.6, 5.0.5, 5.0.4, 5.0.3, 5.0.2, 5.0.10, 5.0.1, 5.0, 4.3.9, 4.3.8, 4.3.7, 4.3.6, 4.3.5, 4.3.4, 4.3.3, 4.3.20, 4 allows attacker to access sensitive information via the RSS feed protlet.

Published Feb 17, 2023 · Updated Mar 19, 2025

Low · CVSS 2.3

CVE-2021-41527: 2FA bypass on the RISC Platform

An error related to the 2-factor authorization (2FA) on the RISC Platform prior to the saas-2021-12-29 release can potentially be exploited to bypass the 2FA. The vulnerability requires that the 2FA setup hasn’t been completed.

Published Feb 7, 2025 · Updated Mar 13, 2025

Medium · CVSS 4

CVE-2021-4325: NHN TOAST UI Chart Legend cross site scripting

A vulnerability, which was classified as problematic, has been found in NHN TOAST UI Chart 4.1.4. This issue affects some unknown processing of the component Legend Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. Upgrading to version 4.2.0 is able to address this issue. The identifier of the patch is 1a3f455d17df379e11b501bb5ba1dd1bcc41d63e. It is recommended to upgrade the affected component. The identifier VDB-221501 was assigned to this vulnerability.

Published Feb 22, 2023 · Updated Mar 12, 2025

Medium · CVSS 6.2

CVE-2021-32843: HyperKit is a toolkit for embedding hypervisor capabilities in an application.

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, `virtio.c` has is a call to `vc_cfgread` that does not check for null which when called makes the host crash. This issue may lead to a guest crashing the host causing a denial of service. This issue is fixed in commit df0e46c7dbfd81a957d85e449ba41b52f6f7beb4.

Published Feb 17, 2023 · Updated Mar 10, 2025

Medium · CVSS 6.2

CVE-2021-32844: HyperKit is a toolkit for embedding hypervisor capabilities in an application.

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, ` vi_pci_write` has is a call to `vc_cfgwrite` that does not check for null which when called makes the host crash. This issue may lead to a guest crashing the host causing a denial of service. This issue is fixed in commit 451558fe8aaa8b24e02e34106e3bb9fe41d7ad13.

Published Feb 17, 2023 · Updated Mar 10, 2025

High · CVSS 7.7

CVE-2021-32845: Moby HyperKit uninitialized memory use vtrnd pci_vtrnd_notify

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, the implementation of `qnotify` at `pci_vtrnd_notify` fails to check the return value of `vq_getchain`. This leads to `struct iovec iov;` being uninitialized and used to read memory in `len = (int) read(sc->vrsc_fd, iov.iov_base, iov.iov_len);` when an attacker is able to make `vq_getchain` fail. This issue may lead to a guest crashing the host causing a denial of service and, under certain circumstance, memory corruption. This issue is fixed in commit 41272a980197917df8e58ff90642d14dec8fe948.

Published Feb 17, 2023 · Updated Mar 10, 2025

High · CVSS 7.7

CVE-2021-32846: Moby HyperKit uninitialized memory use in virtio-sock pci_vtsock_proc_tx

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107, function `pci_vtsock_proc_tx` in `virtio-sock` can lead to to uninitialized memory use. In this situation, there is a check for the return value to be less or equal to `VTSOCK_MAXSEGS`, but that check is not sufficient because the function can return `-1` if it finds an error it cannot recover from. Moreover, the negative return value will be used by `iovec_pull` in a while condition that can further lead to more corruption because the function is not designed to handle a negative `iov_len`. This issue may lead to a guest crashing the host causing a denial of service and, under certain circumstance, memory corruption. This issue is fixed in commit af5eba2360a7351c08dfd9767d9be863a50ebaba.

Published Feb 17, 2023 · Updated Mar 10, 2025

High · CVSS 7.1

CVE-2021-32847: Moby HyperKit uninitialized memory use in virtio-sock pci_vtsock_proc_tx

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior, a malicious guest can trigger a vulnerability in the host by abusing the disk driver that may lead to the disclosure of the host memory into the virtualized guest. This issue is fixed in commit cf60095a4d8c3cb2e182a14415467afd356e982f.

Published Feb 20, 2023 · Updated Mar 10, 2025

High · CVSS 7.5

CVE-2021-32848: Octobox ReDoS vulnerability

Octobox is software for managing GitHub notifications. Prior to pull request (PR) 2807, a user of the system can provide a specifically crafted search query string that will trigger a ReDoS vulnerability. This issue is fixed in PR 2807.

Published Feb 20, 2023 · Updated Mar 10, 2025

Medium · CVSS 5.4

CVE-2021-32852: countly-server vulnerable to Cross-site Scripting

Countly, a product analytics solution, is vulnerable to cross-site scripting prior to version 21.11 of the community edition. The victim must follow a malicious link or be redirected there from malicious web site. The attacker must have an account or be able to create one. This issue is patched in version 21.11.

Published Feb 20, 2023 · Updated Mar 10, 2025

Medium · CVSS 6.1

CVE-2021-32853: Erxes vulnerable to Cross-site Scripting

Erxes, an experience operating system (XOS) with a set of plugins, is vulnerable to cross-site scripting in versions 0.22.3 and prior. This results in client-side code execution. The victim must follow a malicious link or be redirected there from malicious web site. There are no known patches.

Published Feb 20, 2023 · Updated Mar 10, 2025