Slab Quill 4.8.0 HTML Editor onloadstart HTML injection ⚔ [Disputed]
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.8 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Slab Quill 4.8.0 and classified as problematic. The impacted element is an unknown function of the component HTML Editor. The manipulation of the argument onloadstart results in HTML injection. This vulnerability is identified as CVE-2021-3163. The attack can be executed remotely. There is not any exploit available. There are still doubts about whether this vulnerability truly exists.
Details
A vulnerability was found in Slab Quill 4.8.0. It has been classified as problematic. Affected is an unknown code of the component HTML Editor. The manipulation of the argument onloadstart with an unknown input leads to a html injection vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity.
The weakness was released 04/13/2021. The advisory is available at burninatorsec.blogspot.com. This vulnerability is traded as CVE-2021-3163. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
The real existence of this vulnerability is still doubted at the moment.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.8
VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: HTML injectionCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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
01/17/2021 🔍04/13/2021 🔍
04/13/2021 🔍
05/04/2025 🔍
Sources
Advisory: burninatorsec.blogspot.comStatus: Not defined
Confirmation: 🔍
Disputed: 🔍
CVE: CVE-2021-3163 (🔍)
GCVE (CVE): GCVE-0-2021-3163
GCVE (VulDB): GCVE-100-172806
Entry
Created: 04/13/2021 10:55Updated: 05/04/2025 02:02
Changes: 04/13/2021 10:55 (37), 04/16/2021 11:16 (2), 07/19/2024 21:22 (35), 05/04/2025 02:02 (3)
Complete: 🔍
Cache ID: 216::103
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