CVE-2023-49881VulnerabilityPublished 1 Oct 2025

CVE-2023-49881: IBM Transformation Extender Advanced · Insufficient Session Expiration

Affects IBM Transformation Extender AdvancedSource CVE Database V5

Not known to be exploited · CVSS 6.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

6.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 1 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
IBM Transformation Extender Advanced	Affected =10.0.1	Fixed in–

AI-suggested

To mitigate CVE-2023-49881, European organizations should implement the following specific measures: 1) Immediately review and monitor session management logs for unusual session reuse or prolonged session activity after logout events. 2) Enforce strict session timeout policies and consider reducing session lifetimes to limit the window of opportunity for session hijacking. 3) Where possible, implement additional authentication checks on sensitive operations to reduce the impact of session reuse. 4) Restrict access to IBM Transformation Extender Advanced interfaces to trusted networks and enforce multi-factor authentication to reduce the risk of unauthorized authenticated access. 5) Monitor IBM’s security advisories closely for patches or updates addressing this vulnerability and plan prompt deployment once available. 6) Conduct internal security awareness training to highlight the importance of proper logout procedures and session security. 7) Consider deploying web application firewalls (WAFs) or intrusion detection systems (IDS) tuned to detect anomalous session reuse patterns. 8) If feasible, isolate IBM Transformation Extender Advanced environments to limit potential lateral movement from compromised sessions. These targeted actions go beyond generic advice by focusing on session management hygiene, network segmentation, and proactive monitoring tailored to this vulnerability’s characteristics.

Description

IBM Transformation Extender Advanced 10.0.1 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system.

Impact

For European organizations using IBM Transformation Extender Advanced 10.0.1, this vulnerability poses a tangible risk of unauthorized access through session hijacking. Given that the product is often used in enterprise data integration and transformation workflows, exploitation could lead to unauthorized data access, manipulation, or disruption of business processes. Confidentiality could be compromised if sensitive data is exposed through hijacked sessions. Integrity risks arise if attackers modify data or transformation rules. Availability impact, while rated low to medium, could occur if attackers disrupt session management or cause denial of service by abusing session tokens. The medium severity score suggests that while the vulnerability is not trivial, it requires some level of authenticated access, limiting exposure to insider threats or attackers who have already breached perimeter defenses. European organizations in sectors such as finance, manufacturing, telecommunications, and government—where IBM Transformation Extender Advanced is more likely deployed—should be particularly vigilant. The lack of session invalidation after logout undermines standard security assumptions and could facilitate lateral movement within networks, increasing the risk of broader compromise.

CWE-613Insufficient Session Expiration (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."
Implementation
Set sessions/credentials expiration date.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V2.8.1 (opens in a new tab)
V2.8.6 (opens in a new tab)
V3.6.1 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

ibm.com/support/pages/node/7246882 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 4 Oct 2025, 10:47 UTC

WeaknessesCWE-613

Technical details

References

Community reviews

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