Loading vulnerability…
CVE-2024-30043 is an information disclosure vulnerability in Microsoft SharePoint Server caused by improper handling of XML External Entity (XXE) references. Available reporting attributes the issue to the BaseXmlDataSource class, where attacker-controlled XML input can be processed in a way that permits resolution of external entities. This can allow unauthorized disclosure of data accessible to the SharePoint server during XML parsing. Microsoft rated the issue Important with a CVSS score of 6.5.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a working exploit for CVE-2024-30043, a XXE (XML External Entity) vulnerability in Microsoft SharePoint Server 2019 (tested on version 16.0.10409.20027). The main file, CVE-2024-30043-XXE.py, is a Python script that automates the exploitation process. It authenticates to the target SharePoint server using NTLM credentials, uploads a malicious XML and ASPX file, and sets up a local Flask HTTP server to receive exfiltrated file contents. The exploit leverages XXE to read arbitrary files from the target server and sends their contents to the attacker's server. The script is interactive, allowing the attacker to specify which file to read from the target. The repository also includes a README with usage instructions and references. The exploit is operational and demonstrates file read and exfiltration capabilities against vulnerable SharePoint instances.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Microsoft SharePoint Server vulnerability described as an XXE issue in BaseXmlDataSource due to improper handling of XML External Entity references; content states PoC exploit code was published.
An information disclosure vulnerability in Microsoft SharePoint Server.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.