CVE-2021-26837
SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems)...
SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems) DeliverNow before version 1.2.18, allows attackers to execute arbitrary code, escalate privileges, and gain sensitive information.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems) DeliverNow before version 1.2.18, allows attackers to execute arbitrary code, escalate privileges, and gain sensitive information.
- Record
CVE-2021-26837- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
CVE List No score
SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems) DeliverNow before version 1.2.18, allows attackers to execute arbitrary code, escalate privileges, and gain sensitive information.
- Record
CVE-2021-26837- Updated
- 2026-11-02
EUVDEUVD-2021-13621 No score
SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems) DeliverNow before version 1.2.18, allows attackers to execute arbitrary code, escalate privileges, and gain sensitive information.
- Record
EUVD-2021-13621- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9v9v-hgjm-9gfq
SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems)...
SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems) DeliverNow before version 1.2.18, allows attackers to execute arbitrary code, escalate privileges, and gain sensitive information.
- Record
GHSA-9v9v-hgjm-9gfq- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | l0lsec/CVE-2021-26837 | 2026-07-25 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26837 is a critical vulnerability (CVSS 9.8) in Fortra Delivernow, published September 18, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.94%, the 61st percentile. No source names a fixed version.