PWA for WP Plugin/AMP for WP Plugin up to 1.7.32 on WordPress pwaforwp_splashscreen_uploader unrestricted upload
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.9 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as critical has been found in PWA for WP Plugin and AMP for WP Plugin up to 1.7.32 on WordPress. Affected by this vulnerability is the function pwaforwp_splashscreen_uploader. Such manipulation leads to unrestricted upload.
This vulnerability is uniquely identified as CVE-2021-4354. The attack can be launched remotely. No exploit exists.
Details
A vulnerability was found in PWA for WP Plugin and AMP for WP Plugin up to 1.7.32 on WordPress (WordPress Plugin). It has been rated as critical. Affected by this issue is the function pwaforwp_splashscreen_uploader. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. CVE summarizes:
The PWA for WP & AMP for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the pwaforwp_splashscreen_uploader function in versions up to, and including, 1.7.32. This makes it possible for authenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.
The weakness was disclosed 06/07/2023. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2021-4354 since 06/06/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1608.002.
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
Type
Name
Version
- 1.7.0
- 1.7.1
- 1.7.2
- 1.7.3
- 1.7.4
- 1.7.5
- 1.7.6
- 1.7.7
- 1.7.8
- 1.7.9
- 1.7.10
- 1.7.11
- 1.7.12
- 1.7.13
- 1.7.14
- 1.7.15
- 1.7.16
- 1.7.17
- 1.7.18
- 1.7.19
- 1.7.20
- 1.7.21
- 1.7.22
- 1.7.23
- 1.7.24
- 1.7.25
- 1.7.26
- 1.7.27
- 1.7.28
- 1.7.29
- 1.7.30
- 1.7.31
- 1.7.32
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.0VulDB Meta Temp Score: 7.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CNA Base Score: 8.8
CNA Vector (Wordfence): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Unrestricted uploadCWE: CWE-434 / CWE-284 / CWE-266
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
06/06/2023 🔍06/07/2023 🔍
06/07/2023 🔍
04/09/2026 🔍
Sources
Advisory: wordfence.comStatus: Not defined
CVE: CVE-2021-4354 (🔍)
GCVE (CVE): GCVE-0-2021-4354
GCVE (VulDB): GCVE-100-230912
Entry
Created: 06/07/2023 07:34Updated: 04/09/2026 21:49
Changes: 06/07/2023 07:34 (47), 07/05/2023 12:11 (1), 04/09/2026 21:49 (26)
Complete: 🔍
Cache ID: 216::103
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