DedeCMS 5.7.118 /sys_task_add.php cross-site request forgery
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.6 | $0-$5k | 1.45 |
Summary
A vulnerability has been found in DedeCMS 5.7.118 and classified as problematic. This vulnerability affects unknown code of the file /sys_task_add.php. The manipulation leads to cross-site request forgery. This vulnerability is uniquely identified as CVE-2026-29839. The attack is possible to be carried out remotely. No exploit exists.
Details
A vulnerability was found in DedeCMS 5.7.118. It has been rated as problematic. This issue affects an unknown part of the file /sys_task_add.php. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. The summary by CVE is:
DedeCMS v5.7.118 was discovered to contain a Cross-Site Request Forgery (CSRF) vulnerability in /sys_task_add.php.
The identification of this vulnerability is CVE-2026-29839 since 03/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.
By approaching the search of inurl:sys_task_add.php it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-14903). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.6VulDB Meta Temp Score: 6.6
VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
ADP CISA Base Score: 8.8
ADP CISA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross-site request forgeryCWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Google Hack: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
03/04/2026 CVE reserved03/24/2026 Advisory disclosed
03/24/2026 VulDB entry created
03/28/2026 VulDB entry last update
Sources
Status: Not definedCVE: CVE-2026-29839 (🔒)
GCVE (CVE): GCVE-0-2026-29839
GCVE (VulDB): GCVE-100-352817
EUVD: 🔒
Entry
Created: 03/24/2026 17:34Updated: 03/28/2026 22:32
Changes: 03/24/2026 17:34 (52), 03/24/2026 21:44 (1), 03/28/2026 22:32 (12)
Complete: 🔍
Cache ID: 216:6F2:103
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