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CWE-502
Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
CVE-2026-35464 (GCVE-0-2026-35464)
Vulnerability from cvelistv5 – Published: 2026-04-07 14:38 – Updated: 2026-04-07 15:58
VLAI
EPSS
VEX
Title
pyLoad has an incomplete fix for CVE-2026-33509: unprotected storage_folder enables arbitrary file write to Flask session store and code execution
Summary
pyLoad is a free and open-source download manager written in Python. The fix for CVE-2026-33509 added an ADMIN_ONLY_OPTIONS set to block non-admin users from modifying security-critical config options. The storage_folder option is not in this set and passes the existing path restriction because the Flask session directory is outside both PKGDIR and userdir. A user with SETTINGS and ADD permissions can redirect downloads to the Flask filesystem session store, plant a malicious pickle payload as a predictable session file, and trigger arbitrary code execution when any HTTP request arrives with the corresponding session cookie. This vulnerability is fixed with commit c4cf995a2803bdbe388addfc2b0f323277efc0e1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/pyload/pyload/security/advisor… | x_refsource_CONFIRM |
| https://github.com/pyload/pyload/security/advisor… | x_refsource_MISC |
| https://github.com/pyload/pyload/commit/c4cf995a2… | x_refsource_MISC |
| https://www.cve.org/CVERecord?id=CVE-2026-33509 | x_refsource_MISC |
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CVE-2026-35537 (GCVE-0-2026-35537)
Vulnerability from cvelistv5 – Published: 2026-04-03 03:28 – Updated: 2026-04-11 14:12
VLAI
EPSS
VEX
Summary
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsafe deserialization in the redis/memcache session handler may lead to arbitrary file write operations by unauthenticated attackers via crafted session data.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
8 references
Impacted products
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CVE-2026-39324 (GCVE-0-2026-39324)
Vulnerability from cvelistv5 – Published: 2026-04-07 18:13 – Updated: 2026-04-08 18:44
VLAI
EPSS
VEX
Title
Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization
Summary
Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie. This allows an unauthenticated attacker to supply a crafted session cookie that is accepted as valid session data without knowledge of any configured secret. Because this mechanism is used to load session state, an attacker can manipulate session contents and potentially gain unauthorized access. This vulnerability is fixed in 2.1.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rack/rack-session/security/adv… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| rack | rack-session |
Affected:
>= 2.0.0, < 2.1.2
|
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CVE-2026-39434 (GCVE-0-2026-39434)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-16 14:52
VLAI
EPSS
VEX
Title
WordPress CTX Feed plugin <= 6.6.26 - PHP Object Injection vulnerability
Summary
Shop manager PHP Object Injection in CTX Feed <= 6.6.26 versions.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
Credits
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CVE-2026-39442 (GCVE-0-2026-39442)
Vulnerability from cvelistv5 – Published: 2026-06-17 12:47 – Updated: 2026-06-17 14:28
VLAI
EPSS
VEX
Title
WordPress PressMart theme <= 1.2.26 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in PressMart <= 1.2.26 versions.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/p… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PressLayouts | PressMart |
Affected:
n/a , ≤ 1.2.26
(custom)
|
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CVE-2026-39443 (GCVE-0-2026-39443)
Vulnerability from cvelistv5 – Published: 2026-06-16 20:57 – Updated: 2026-06-17 10:42
VLAI
EPSS
VEX
Title
WordPress EmallShop theme <= 2.4.21 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in EmallShop <= 2.4.21 versions.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/e… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PressLayouts | EmallShop |
Affected:
n/a , ≤ 2.4.21
(custom)
|
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CVE-2026-39445 (GCVE-0-2026-39445)
Vulnerability from cvelistv5 – Published: 2026-06-17 12:47 – Updated: 2026-06-17 15:28
VLAI
EPSS
VEX
Title
WordPress Alukas theme < 3.0.0 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Alukas < 3.0.0 versions.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/a… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PressLayouts | Alukas |
Affected:
n/a , < 3.0.0
(custom)
|
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CVE-2026-39446 (GCVE-0-2026-39446)
Vulnerability from cvelistv5 – Published: 2026-06-16 20:57 – Updated: 2026-06-17 10:42
VLAI
EPSS
VEX
Title
WordPress Kapee theme < 1.7.0 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Kapee < 1.7.0 versions.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/k… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PressLayouts | Kapee |
Affected:
n/a , < 1.7.0
(custom)
|
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CVE-2026-39467 (GCVE-0-2026-39467)
Vulnerability from cvelistv5 – Published: 2026-04-21 09:35 – Updated: 2026-05-19 17:18 X_Open Source
VLAI
EPSS
VEX
Title
WordPress Responsive Slider by MetaSlider plugin <= 3.106.0 - PHP Object Injection vulnerability
Summary
Deserialization of Untrusted Data vulnerability in MetaSlider Responsive Slider by MetaSlider allows Object Injection.This issue affects Responsive Slider by MetaSlider: from n/a through 3.106.0.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MetaSlider | Responsive Slider by MetaSlider |
Affected:
n/a , ≤ 3.106.0
(custom)
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CVE-2026-39471 (GCVE-0-2026-39471)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:17 – Updated: 2026-06-15 22:16
VLAI
EPSS
VEX
Title
WordPress ShortPixel Image Optimizer plugin <= 6.4.3 - PHP Object Injection vulnerability
Summary
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ShortPixel | ShortPixel Image Optimizer |
Affected:
n/a , ≤ 6.4.3
(custom)
|
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Mitigation
Phases: Architecture and Design, Implementation
Description:
- If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
Mitigation
Phase: Implementation
Description:
- When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
Mitigation
Phase: Implementation
Description:
- Explicitly define a final object() to prevent deserialization.
Mitigation
Phases: Architecture and Design, Implementation
Description:
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Mitigation
Phase: Implementation
Description:
- Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.
Mitigation
Phases: Architecture and Design, Implementation
Description:
- Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.
Mitigation ID: MIT-29
Phase: Operation
Strategy: Firewall
Description:
- Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
CAPEC-586: Object Injection
An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.