Loading vulnerability…
CVE-2021-26837 is a SQL Injection vulnerability in the SearchTextBox parameter of Fortra (formerly HelpSystems) DeliverNow prior to version 1.2.18. The vulnerability allows an attacker to inject arbitrary SQL commands via the SearchTextBox parameter, potentially leading to arbitrary code execution, privilege escalation, and unauthorized access to sensitive information.
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 is a small proof-of-concept and reproduction kit for CVE-2021-26837, a SQL injection vulnerability in HelpSystems/Fortra DeliverNow before version 1.2.18. The repo contains 5 files total: a README with the vulnerability narrative and reproduction steps, plus three PoC artifacts under `poc/` (`exploited-request.http`, `payloads.sql`, and `sqlmap.md`). There is no standalone exploit program; instead, the repository provides a crafted HTTP request, reusable SQL payloads, and sqlmap usage notes. The main exploit capability is SQL injection in the `SearchTextbox` POST parameter on `/LogGrid.aspx`. The included payloads support multiple validation modes: simple error-based detection (`blah'`), stacked-query confirmation (`select 1`), time-based confirmation (`waitfor delay`), and an out-of-band SMB authentication trigger using `master.dbo.xp_dirtree` against an attacker-controlled UNC path. That OOB technique can leak the SQL Server service account's NTLMv2 hash to an SMB listener such as Impacket `smbserver.py`. The documentation also shows that sqlmap can enumerate the backend DBMS, current user, current database, and database users/password hashes when the application connects as `sa`. The exploit targets a web application backed by Microsoft SQL Server and depends on valid ASP.NET WebForms state values (`__VIEWSTATE`, `__VIEWSTATEGENERATOR`) and a live session cookie. The README emphasizes that the vulnerable deployments used `sa`, which greatly increases impact. While the repository does not include a direct OS command execution payload, it explicitly notes that sysadmin rights could allow enabling `xp_cmdshell` via `sp_configure`, making host-level command execution feasible. Overall, this is an operational PoC repository focused on authenticated or session-backed web exploitation leading to arbitrary SQL execution and credential coercion over SMB.
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.
No public activity tracked yet. Mallory keeps watching.
No public activity observed for this vulnerability.
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.