Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
23 results
Jun 29, 2026Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in leandrocp mdex allows cross-site scripting via unsanitized URL schemes in QuiCVE-2026-54889 · Other software · leandrocp · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbMedium 5.1
Improper Neutralization of Input During Web Page Generation (XSS) vulnerability in leandrocp mdex allows cross-site scripting via unsanitized URL schemes in Quill Delta output. 'Elixir.MDEx':to_delta/2 converts Markdown into a Quill Delta. 'Elixir.MDEx.DeltaConverter':default_convert_node/3 in lib/mdex/delta_converter.ex copies the URL of a link, wikilink, or image node directly from the parsed Markdown into the Delta "link" or "image" attribute without applying a scheme allowlist or any normalization. An attacker who controls the Markdown text can supply a javascript: URL (for example [click](javascript:alert(document.cookie))) that survives verbatim into the Delta attribute. When the Delta is rendered to HTML by a downstream renderer (such as quill-delta-to-html or the Quill client), the attribute becomes an <a href> or <img src>, and the javascript: scheme executes in the browser of anyone who views the rendered content. The link and wikilink cases are the strongest vectors because javascript: in an href executes on click; the image case is lower impact because javascript: in <img src> generally does not execute in modern browsers. This issue affects mdex: from 0.8.3 before 0
- Product
- mdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Jun 29, 2026Uncontrolled Recursion vulnerability in leandrocp mdex allows denial of service via deeply nested Markdown input.CVE-2026-54888 · Other software · leandrocp · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbMedium 6.9
Uncontrolled Recursion vulnerability in leandrocp mdex allows denial of service via deeply nested Markdown input. mdex converts between an Elixir %MDEx.Document{} struct and Comrak's internal AST using two mutually recursive Rust functions, ex_document_to_comrak_ast and comrak_ast_to_ex_document, in the NIF source file document.rs. Neither function enforces a maximum nesting depth, so the recursion depth is bounded only by the structure of the input. An attacker who can get a Markdown document rendered (for example through MDEx.parse_document!/1 or MDEx.to_html/1) can supply a document with thousands of nested block quotes, which drives unbounded recursion across the NIF boundary and exhausts the native C stack. Because the resulting stack overflow is an uncatchable SIGSEGV raised inside a NIF, it cannot be contained by the Erlang runtime. It terminates the operating system process running the BEAM, killing every Elixir and Erlang process on the node, not just the caller that triggered the render. No authentication or special privileges are required. The vulnerable conversion code was extracted from mdex into the separate mdex_native package starting in mdex 0.12.3. This issue a
- Product
- mdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Jun 29, 2026Missing Release of Memory after Effective Lifetime vulnerability in leandrocp mdex and mdex_native allows an attacker who controls a rendered document to cause CVE-2026-53429 · Other software · leandrocp · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbMedium 6.9
Missing Release of Memory after Effective Lifetime vulnerability in leandrocp mdex and mdex_native allows an attacker who controls a rendered document to cause a denial of service through unbounded native memory exhaustion. The native rendering code permanently leaks memory when rendering a document that contains escaped-tag nodes. The conversion of each %MDEx.EscapedTag{} node into its native representation (From<ExEscapedTag> for NodeValue in the Rust NIF) calls Box::leak on the caller-supplied literal string, which surrenders the backing allocation so that it lives for the entire lifetime of the operating system process and is never freed. Both the byte length of each literal and the number of escaped-tag nodes in a document are attacker-controlled, and there is no size cap, rate limit, or string interning on this path. Every render of a document containing escaped-tag nodes therefore leaks literal_size x node_count bytes that can never be reclaimed, and repeated renders accumulate without bound. Rendering reaches this path through the public MDEx.to_html/1 entry point and any other API that renders a supplied %MDEx.Document{}. Any application that uses mdex (or mdex_native d
- Product
- mdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Jun 29, 2026Allocation of Resources Without Limits or Throttling vulnerability in leandrocp MDEx allows Excessive Allocation.CVE-2026-53426 · Other software · leandrocp · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbHigh 8.2
Allocation of Resources Without Limits or Throttling vulnerability in leandrocp MDEx allows Excessive Allocation. MDEx.parse_document/2 accepts a {:json, json} source. In lib/mdex.ex, the private json_to_node/1 function passes the attacker-controlled node_type value to Module.concat/1, which calls String.to_atom/1 and interns a brand-new atom for every distinct value. Atoms are never garbage collected on the BEAM, so a crafted JSON document carrying a unique node_type at each (deeply nested) node mints one permanent atom per node. A single document can intern hundreds of thousands of atoms, and a large enough document exhausts the default atom table (around 1,048,576 atoms) and aborts the entire Erlang VM, taking down every process on the node. Any application that passes untrusted input to the {:json, ...} source of MDEx.parse_document is exposed to an unauthenticated denial-of-service. This issue affects mdex from 0.4.3 before 0.13.2.
- Product
- mdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Jun 29, 2026Memory Allocation with Excessive Size Value vulnerability in leandrocp mdex allows an unauthenticated attacker to cause a denial of service through unbounded meCVE-2026-53428 · Other software · leandrocp · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbMedium 6.9
Memory Allocation with Excessive Size Value vulnerability in leandrocp mdex allows an unauthenticated attacker to cause a denial of service through unbounded memory allocation. comrak_nif::lumis_adapter::LumisAdapter::parse_highlight_lines in native/comrak_nif/src/lumis_adapter.rs eagerly expands a user-controlled inclusive line range from a fenced code block's highlight_lines decorator into a Vec<usize>, pushing one element per integer in the range with no upper bound on the range size. An attacker who can supply Markdown that an application renders with MDEx.to_html/2 (for example a comment, chat message, or wiki page) can embed a code block whose info string is rust highlight_lines="1-100000000", forcing the native adapter to allocate roughly 8 bytes per line in the range. A payload that differs by only a few bytes can therefore allocate hundreds of megabytes, and a sufficiently large range (for example 1-2000000000) exhausts host memory and aborts the BEAM, denying service to every user of the rendering process. The per-line write loop additionally tests membership with a linear scan over the same vector, degrading rendering to a quadratic cost even for ranges that do not imm
- Product
- mdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Jun 29, 2026Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in leandrocp MDEx allows stored or reflected cross-site scripCVE-2026-53427 · Other software · leandrocp · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbLow 2.3
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in leandrocp MDEx allows stored or reflected cross-site scripting via attacker-controlled Markdown. When syntax highlighting and full info-string forwarding (render: [full_info_string: true]) are enabled, the Lumis adapter copies the value of a code fence's highlight_lines_class info-string attribute, unescaped, into the class attribute of every rendered line. comrak_nif::lumis_adapter::LumisAdapter::parse_custom_attributes in native/comrak_nif/src/lumis_adapter.rs shlex-parses the info string and stores each key=value pair verbatim, highlight_lines_config pulls highlight_lines_class into the per-line class value, and write_highlighted interpolates that value directly into the class attribute of the per-line <div>. A single-quoted shell token preserves an inner double quote through shlex parsing, so a value such as '"><script>alert(1)</script>' terminates the class attribute early and the markup that follows is emitted as live HTML. An attacker who can submit Markdown (through comments, posts, wiki pages, documentation, or any user-generated content) can inject arbitrary HTML and Ja
- Product
- mdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Nov 10, 2022DexLoader function get_stringidx_fromdex() in Redex prior to commit 3b44c64 can load an out of bound address when loading the string index table, potentially alCVE-2022-36938 · Other software · Facebook · reported by cve-assign@fb.comCritical 9.8
DexLoader function get_stringidx_fromdex() in Redex prior to commit 3b44c64 can load an out of bound address when loading the string index table, potentially allowing remote code execution during processing of a 3rd party Android APK file.
- Product
- Redex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 16, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0612 · Other software · livehelperchat · reported by security@huntr.devMedium 5.4
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 6, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0502 · Other software · livehelperchat · reported by security@huntr.devMedium 5.4
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 28, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0395 · Other software · livehelperchat · reported by security@huntr.devMedium 5.4
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 28, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0394 · Other software · livehelperchat · reported by security@huntr.devMedium 5.4
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 27, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0387 · Other software · livehelperchat · reported by security@huntr.devMedium 5.4
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 27, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0370 · Other software · livehelperchat · reported by security@huntr.devMedium 5.4
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 26, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0375 · Other software · livehelperchat · reported by security@huntr.devMedium 4.8
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 26, 2022Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.CVE-2022-0374 · Other software · livehelperchat · reported by security@huntr.devMedium 5.4
Cross-site Scripting (XSS) - Stored in Packagist remdex/livehelperchat prior to 3.93v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 19, 2022Authorization Bypass Through User-Controlled Key in Packagist remdex/livehelperchat prior to 3.92v.CVE-2022-0266 · Other software · livehelperchat · reported by security@huntr.devMedium 6.6
Authorization Bypass Through User-Controlled Key in Packagist remdex/livehelperchat prior to 3.92v.
- Product
- livehelperchat/livehelperchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 30, 2021UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and CmdExtract::ExtractCurrentFile).CVE-2017-20006 · Other software · Rarlab · reported by MITREHigh 7.8
UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and CmdExtract::ExtractCurrentFile).
- Product
- Unrar
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.chromium.orggithub.com
May 23, 2019XSS exists in the /cmdexec/cmdexe?cmd= function in Westermo DR-250 Pre-5162 and DR-260 Pre-5162 routers.CVE-2018-19614 · Other software · Westermo · reported by MITREMedium 6.1
XSS exists in the /cmdexec/cmdexe?cmd= function in Westermo DR-250 Pre-5162 and DR-260 Pre-5162 routers.
- Product
- Dr-250 Firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 13, 2018The /edit URI in the DMS component in Ximdex 4.0 has XSS via the Ciudad or Nombre parameter.CVE-2018-12273 · Other software · Ximdex · reported by MITREMedium 6.1
The /edit URI in the DMS component in Ximdex 4.0 has XSS via the Ciudad or Nombre parameter.
- Product
- Ximdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 13, 2018xowl/request.php in Ximdex 4.0 has XSS via the content parameter.CVE-2018-12272 · Other software · Ximdex · reported by MITREMedium 6.1
xowl/request.php in Ximdex 4.0 has XSS via the content parameter.
- Product
- Ximdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 7, 2018xfind/search in Ximdex 4.0 has XSS via the filter[n][value] parameters for non-negative values of n, as demonstrated by n equal to 0 through 12.CVE-2018-12047 · Other software · Ximdex · reported by MITREMedium 6.1
xfind/search in Ximdex 4.0 has XSS via the filter[n][value] parameters for non-negative values of n, as demonstrated by n equal to 0 through 12.
- Product
- Ximdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 5, 2018index.php?action=createaccount in Ximdex 4.0 has XSS via the sname or fname parameter.CVE-2018-11735 · Other software · Ximdex · reported by MITREMedium 6.1
index.php?action=createaccount in Ximdex 4.0 has XSS via the sname or fname parameter.
- Product
- Ximdex
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 24, 2017Vulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager component of Oracle Commerce (subcomponent: MDEX).CVE-2017-3572 · Websites & servers · Oracle Corporation · reported by secalert_us@oracle.comHigh 7.5
Vulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager component of Oracle Commerce (subcomponent: MDEX). Supported versions that are affected are 6.2.2, 6.3.0, 6.4.1.2, 6.5.0, 6.5.1 and 6.5.2. Easily "exploitable" vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Commerce Guided Search / Oracle Commerce Experience Manager. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Commerce Guided Search / Oracle Commerce Experience Manager. CVSS 3.0 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
- Product
- Commerce Guided Search / Oracle Commerce Experience Manager
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordoracle.comsecurityfocus.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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