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CVE Record

CVE-2020-7780: Cross-site Request Forgery (CSRF)

This affects the package com.softwaremill.akka-http-session:core_2.13 before 0.5.11; the package com.softwaremill.akka-http-session:core_2.12 before 0.5.11; the package com.softwaremill.akka-http-session:core_2.11 before 0.5.11. For older versions, endpoints protected by randomTokenCsrfProtection could be bypassed with an empty X-XSRF-TOKEN header and an empty XSRF-TOKEN cookie.

MediumCVSS 6.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-7780 is a CSRF protection bypass in akka-http-session. Applications using affected com.softwaremill.akka-http-session core artifacts before 0.5.11 may allow a tricked user’s browser to perform unintended actions where randomTokenCsrfProtection is relied on.

Executive priority

Treat as a focused dependency remediation item, not an emergency unless exposed applications protect sensitive business actions with this library. Upgrade during the next security maintenance window.

Technical view

Affected core_2.11, core_2.12, and core_2.13 versions before 0.5.11 mishandled CSRF token validation for endpoints protected by randomTokenCsrfProtection. The CVSS 3.1 score is 6.3, with network attack vector, low complexity, no privileges required, and required user interaction.

Likely exposure

Exposure is most likely in Scala/Akka HTTP applications that depend on akka-http-session core before 0.5.11 and use randomTokenCsrfProtection on state-changing routes.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Practical abuse requires user interaction and an application workflow where CSRF-protected actions have business impact.

Researcher notes

Key validation is dependency version plus actual use of randomTokenCsrfProtection. The bundle identifies the bypass condition but does not provide broader exploit telemetry, affected application examples, or compensating-control guidance.

Mitigation direction

  • Upgrade affected akka-http-session core artifacts to 0.5.11 or later.
  • Prioritize applications with authenticated, state-changing routes protected by randomTokenCsrfProtection.
  • Review vendor GitHub issues and the fixing commit for implementation context.
  • Retest CSRF behavior after dependency upgrade in staging.
  • Check vendor guidance if older unsupported versions cannot be upgraded.

Validation and detection

  • Inventory build files and SBOMs for affected akka-http-session core artifacts.
  • Confirm deployed versions are not below 0.5.11.
  • Identify routes using randomTokenCsrfProtection for state-changing operations.
  • Verify fixed builds reject invalid or absent CSRF token material.
  • Review dependency trees for transitive inclusion of vulnerable artifacts.
Prepared
Confidence
high
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-7780 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
7Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L2.83.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.3Medium
CVSS 3.1 vector shape for CVE-2020-7780Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/acom.softwaremill.akka-http-session:core_2.13unspecifiedListed
n/acom.softwaremill.akka-http-session:core_2.12unspecifiedListed
n/acom.softwaremill.akka-http-session:core_2.11unspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.