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CVE-2024-33879

27
FAUCET Score

CVE-2024-33879 is a critical path traversal vulnerability in VirtoSoftware Virto Bulk File Download 5.5.44 for SharePoint 2019, specifically within the Virto.SharePoint.FileDownloader/Api/Download.ashx isCompleted method. This flaw allows unauthenticated attackers to download and delete arbitrary files on affected Microsoft SharePoint servers by manipulating the 'path' parameter. With a CVSS score of 9.8, this vulnerability poses a severe risk, enabling full compromise of confidentiality, integrity, and availability without user interaction. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.5.44CPE matchmatch criteria
cpe:2.3:a:virtosoftware:sharepoint_bulk_file_download:5.5.44:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 26th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.virtosoftware.com / v/virto-security-frequently-asked-questions-faq
Product
download.virtosoftware.com / Manuals/nu_ncsc_virto_one_bulk_file_download_v5.4.4_pt_disclosure.pdf
Product