{"vulnerability": "CVE-2020-2621", "sightings": [{"uuid": "25db6987-6e65-4eb6-b86f-2c32c7ff2922", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/61268", "content": "GitHub\u76d1\u63a7\u6d88\u606f\u63d0\u9192\uff01\uff01\uff01 \n\n\u66f4\u65b0\u4e86\uff1a\u53cd\u5e8f\u5217\u5316\n\u63cf\u8ff0\uff1aCVE-2020-26217 XStream\u53cd\u5e8f\u5217\u5316\u7684poc\nURL\uff1ahttps://github.com/Kairo-one/CVE-2020-26217-XStream\n\n\u6807\u7b7e\uff1a#\u53cd\u5e8f\u5217\u5316", "creation_timestamp": "2025-12-01T09:29:25.000000Z"}, {"uuid": "c473bffd-5002-442d-9e0f-608c8946a6b1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "Telegram/T3kChWKGDz1qPZSpta-K5xRrbcgjJUvh35EVMIa5wgYdoLI", "content": "", "creation_timestamp": "2025-12-01T09:00:05.000000Z"}, {"uuid": "e2c60116-2627-409d-8376-1aa437d8d343", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/cKure/2849", "content": "\u25a0\u25a0\u25a0\u25a0\u25a1 CVE-2020-26217: XStream can be used for Remote Code Execution.\n\nhttps://x-stream.github.io/CVE-2020-26217.html", "creation_timestamp": "2020-11-16T17:08:15.000000Z"}, {"uuid": "1a24c50e-15b0-4246-ad83-52c570dd5265", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26215", "type": "seen", "source": "https://t.me/cibsecurity/17395", "content": "\u203c CVE-2020-26215 \u203c\n\nJupyter Notebook before version 6.1.5 has an Open redirect vulnerability. A maliciously crafted link to a notebook server could redirect the browser to a different website. All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet. The issue is patched in version 6.1.5.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-12-09T06:25:17.000000Z"}, {"uuid": "f4b9e364-e211-46b8-84fb-92ffd2214fe6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26212", "type": "seen", "source": "https://t.me/cibsecurity/16855", "content": "\u203c CVE-2020-26212 \u203c\n\nGLPI stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package, that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI before version 9.5.3, any authenticated user has read-only permissions to the planning of every other user, even admin ones. Steps to reproduce the behavior: 1. Create a new planning with 'eduardo.mozart' user (from 'IT' group that belongs to 'Super-admin') into it's personal planning at 'Assistance' > 'Planning'. 2. Copy the CalDAV url and use a CalDAV client (e.g. Thunderbird) to sync the planning with the provided URL. 3. Inform the username and password from any valid user (e.g. 'camila' from 'Proativa' group). 4. 'Camila' has read-only access to 'eduardo.mozart' personal planning. The same behavior happens to any group. E.g. 'Camila' has access to 'IT' group planning, even if she doesn't belong to this group and has a 'Self-service' profile permission). This issue is fixed in version 9.5.3. As a workaround, one can remove the `caldav.php` file to block access to CalDAV server.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-25T20:48:06.000000Z"}, {"uuid": "7d976833-cad6-4f49-86dc-ea59b0dbbe2c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/2917", "content": "#Threat_Research\nDocumented Vulnerabilities in XStream + Workarounds\n(PoCs for CVE-2021-21341-21351, CVE-2020-26217, CVE-2020-26258, CVE-2020-26259, CVE-2017-7957, CVE-2016-3674, CVE-2013-7285)\nhttp://x-stream.github.io/security.html", "creation_timestamp": "2021-03-16T11:01:03.000000Z"}, {"uuid": "87a8a6a8-51c6-42bc-8eef-8a6ef9bf02bb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26217", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/2119", "content": "CVE-2020-26217:\nXStream <=1.4.13 can be used for RCE (PoC)\nhttps://x-stream.github.io/CVE-2020-26217.html\nCVE-2020-13942:\nApache Unomi - RCE Vulnerabilities (PoCs)\nhttps://securityboulevard.com/2020/11/apache-unomi-cve-2020-13942-rce-vulnerabilities-discovered\n+ https://github.com/eugenebmx/CVE-2020-13942", "creation_timestamp": "2020-11-23T03:53:17.000000Z"}, {"uuid": "c10b4263-d5a8-4171-8f73-630e32d38962", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26217", "type": "seen", "source": "https://t.me/cibsecurity/16410", "content": "\u203c CVE-2020-26217 \u203c\n\nXStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-17T00:44:05.000000Z"}, {"uuid": "30ee9180-9310-490b-9b1e-38328c92b143", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26211", "type": "published-proof-of-concept", "source": "https://t.me/cibsecurity/15820", "content": "\u203c CVE-2020-26211 \u203c\n\nIn BookStack before version 0.30.4, a user with permissions to edit a page could insert JavaScript code through the use of `javascript:` URIs within a link or form which would run, within the context of the current page, when clicked or submitted. Additionally, a user with permissions to edit a page could insert a particular meta tag which could be used to silently redirect users to a alternative location upon visit of a page. Dangerous content may remain in the database but will be removed before being displayed on a page. If you think this could have been exploited the linked advisory provides a SQL query to test. As a workaround without upgrading, page edit permissions could be limited to only those that are trusted until you can upgrade although this will not address existing exploitation of this vulnerability. The issue is fixed in BookStack version 0.30.4.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-04T00:40:45.000000Z"}, {"uuid": "2378d647-d113-46fa-ab03-6bc12d55a1aa", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26213", "type": "seen", "source": "https://t.me/cibsecurity/15987", "content": "\u203c CVE-2020-26213 \u203c\n\nIn teler before version 0.0.1, if you run teler inside a Docker container and encounter `errors.Exit` function, it will cause denial-of-service (`SIGSEGV`) because it doesn't get process ID and process group ID of teler properly to kills. The issue is patched in teler 0.0.1 and 0.0.1-dev5.1.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-06T20:51:10.000000Z"}, {"uuid": "c8d7032f-33b9-447f-bcf5-c21308f598bd", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26214", "type": "seen", "source": "https://t.me/cibsecurity/15986", "content": "\u203c CVE-2020-26214 \u203c\n\nIn Alerta before version 8.1.0, users may be able to bypass LDAP authentication if they provide an empty password when Alerta server is configure to use LDAP as the authorization provider. Only deployments where LDAP servers are configured to allow unauthenticated authentication mechanism for anonymous authorization are affected. A fix has been implemented in version 8.1.0 that returns HTTP 401 Unauthorized response for any authentication attempts where the password field is empty. As a workaround LDAP administrators can disallow unauthenticated bind requests by clients.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-06T20:51:09.000000Z"}, {"uuid": "965f9771-7ee0-4adc-b1e6-d10d9a737681", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26219", "type": "seen", "source": "https://t.me/cibsecurity/16187", "content": "\u203c CVE-2020-26219 \u203c\n\ntouchbase.ai before version 2.0 is vulnerable to Open Redirect. Impacts can be many, and vary from theft of information and credentials, to the redirection to malicious websites containing attacker-controlled content, which in some cases even cause XSS attacks. So even though an open redirection might sound harmless at first, the impacts of it can be severe should it be exploitable. The issue is fixed in version 2.0.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-12T00:30:38.000000Z"}, {"uuid": "dad1ea21-3fb7-41b6-beb0-5adaba3945cb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26218", "type": "seen", "source": "https://t.me/cibsecurity/16186", "content": "\u203c CVE-2020-26218 \u203c\n\ntouchbase.ai before version 2.0 is vulnerable to Cross-Site Scripting. The vulnerability allows an attacker to inject HTML payloads which could result in defacement, user redirection to a malicious webpage/website etc. The issue is patched in version 2.0.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-12T00:30:37.000000Z"}, {"uuid": "dc152c8c-c05c-45c0-b840-69eb4a92e3c3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26216", "type": "seen", "source": "https://t.me/cibsecurity/16490", "content": "\u203c CVE-2020-26216 \u203c\n\nTYPO3 Fluid before versions 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11 and 2.6.10 is vulnerable to Cross-Site Scripting. Three XSS vulnerabilities have been detected in Fluid: 1. TagBasedViewHelper allowed XSS through maliciously crafted additionalAttributes arrays by creating keys with attribute-closing quotes followed by HTML. When rendering such attributes, TagBuilder would not escape the keys. 2. ViewHelpers which used the CompileWithContentArgumentAndRenderStatic trait, and which declared escapeOutput = false, would receive the content argument in unescaped format. 3. Subclasses of AbstractConditionViewHelper would receive the then and else arguments in unescaped format. Update to versions 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11 or 2.6.10 of this typo3fluid/fluid package that fix the problem described. More details are available in the linked advisory.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-18T00:39:38.000000Z"}, {"uuid": "b1566971-8260-4eec-8ff2-2f86f254dba6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2020-26215", "type": "seen", "source": "https://t.me/cibsecurity/16561", "content": "\u203c CVE-2020-26215 \u203c\n\nJupyter Notebook before version 6.1.5 has an Open redirect vulnerability. A maliciously crafted link to a notebook server could redirect the browser to a different website. All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet. The issue is patched in version 6.1.5.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2020-11-19T00:40:39.000000Z"}]}