CVE-2021-26247
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=...
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
- Record
CVE-2021-26247- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
- Record
CVE-2021-26247- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-13064 No score
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
- Record
EUVD-2021-13064- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cvpj-w72w-rchg No score
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=...
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
- Record
GHSA-cvpj-w72w-rchg- Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
- Record
CVE-2021-26247- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-26247
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
- Record
DEBIAN-CVE-2021-26247- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-26247
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
- Record
UBUNTU-CVE-2021-26247- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
cactiDebian:12 |
before 0.8.7i-1 | 0.8.7i-1 |
cactiDebian:13 |
before 0.8.7i-1 | 0.8.7i-1 |
cactiDebian:14 |
before 0.8.7i-1 | 0.8.7i-1 |
cactiUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 0.8.8b+dfsg-30.8.8b+dfsg-50.8.8b+dfsg-5ubuntu0.10.8.8b+dfsg-5ubuntu0.20.8.8b+dfsg-5ubuntu0.2+esm10.8.8b+dfsg-5ubuntu0.2+esm2 |
None known |
cactiUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.8.8f+ds1-20.8.8f+ds1-30.8.8f+ds1-40.8.8f+ds1-4ubuntu10.8.8f+ds1-4ubuntu2 Show 7 moreShow less0.8.8f+ds1-4ubuntu30.8.8f+ds1-4ubuntu40.8.8f+ds1-4ubuntu4.16.040.8.8f+ds1-4ubuntu4.16.04.10.8.8f+ds1-4ubuntu4.16.04.20.8.8f+ds1-4ubuntu4.16.04.2+esm10.8.8f+ds1-4ubuntu4.16.04.2+esm2 |
None known |
cactiUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.1.18+ds1-11.1.27+ds1-21.1.27+ds1-31.1.28+ds1-21.1.35+ds1-1 Show 5 moreShow less1.1.36+ds1-11.1.38+ds1-11.1.38+ds1-1ubuntu0.1~esm11.1.38+ds1-1ubuntu0.1~esm31.1.38+ds1-1ubuntu0.1~esm4 |
None known |
cactiUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.2.4+ds1-2ubuntu31.2.9+ds1-1ubuntu11.2.9+ds1-1ubuntu21.2.10+ds1-1ubuntu11.2.10+ds1-1ubuntu1+esm11.2.10+ds1-1ubuntu1.11.2.10+ds1-1ubuntu1.1+esm11.2.10+ds1-1ubuntu1.1+esm2 |
None known |
cactiUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 1.2.16+ds1-2ubuntu11.2.19+ds1-2ubuntu11.2.19+ds1-2ubuntu1+esm11.2.19+ds1-2ubuntu1.11.2.19+ds1-2ubuntu1.1+esm11.2.19+ds1-2ubuntu1.1+esm2 |
None known |
cactiUbuntu:24.04:LTS |
All versions, plus listed versions 1.2.25+ds1-21.2.26+ds1-11.2.26+ds1-1ubuntu0.1 |
None known |
cactiUbuntu:25.10 |
All versions, plus listed versions 1.2.28+ds1-4ubuntu11.2.30+ds1-1ubuntu1 |
None known |
cactiUbuntu:26.10 |
All versions, plus listed versions 1.2.30+ds1-1ubuntu21.2.30+ds1-1ubuntu31.2.31+ds1-3ubuntu2 |
None known |
cactiUbuntu:26.04:LTS |
All versions, plus listed versions 1.2.30+ds1-1ubuntu11.2.30+ds1-1ubuntu2 |
None known |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | Cacti - Cross-Site Scripting |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26247 is a medium vulnerability (CVSS 6.1) in Cacti, published January 19, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.12%, the 94th percentile. Fixed in cacti 0.8.7i-1.