How severe is GHSA-77cc-w3wm-6whp?

GHSA-77cc-w3wm-6whp has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by GHSA-77cc-w3wm-6whp?

GHSA-77cc-w3wm-6whp affects the following packages: be.e_contract.dssp:dssp-client (Maven). Ecosystems affected: Maven.

How do I fix GHSA-77cc-w3wm-6whp?

Update be.e_contract.dssp:dssp-client to 1.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-77cc-w3wm-6whp is resolved across your whole dependency graph.

How do I detect GHSA-77cc-w3wm-6whp in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for be.e_contract.dssp:dssp-client. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-77cc-w3wm-6whp if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-77cc-w3wm-6whp?

O3 pinpoints whether GHSA-77cc-w3wm-6whp is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-77cc-w3wm-6whp actively exploited in the wild?

No public exploit code has been indexed for GHSA-77cc-w3wm-6whp yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-77cc-w3wm-6whp?

GHSA-77cc-w3wm-6whp has an EPSS (Exploit Prediction Scoring System) score of 0.7%, placing it in the 49th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-77cc-w3wm-6whp?

GHSA-77cc-w3wm-6whp is classified as XML External Entity (XXE) (CWE-611). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-77cc-w3wm-6whp published, and has it been updated?

GHSA-77cc-w3wm-6whp was published on January 6, 2023 and was last updated on November 8, 2023. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

GHSA-77cc-w3wm-6whp

CRITICAL

dssp vulnerable to Improper Restriction of XML External Entity Reference

Also known asCVE-2016-15011

Published

Jan 6, 2023

Updated

Nov 8, 2023

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

EPSS Exploitation Probability

via FIRST.org ↗

0.7%probability of exploitation in next 30 days

Lower Risk49th percentile+0.36%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected

☕be.e_contract.dssp:dssp-client

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

A vulnerability classified as problematic was found in e-Contract dssp up to 1.3.1. Affected by this vulnerability is the function checkSignResponse of the file dssp-client/src/main/java/be/e_contract/dssp/client/SignResponseVerifier.java. The manipulation leads to xml external entity reference. Upgrading to version 1.3.2 can address this issue. The name of the patch is ec4238349691ec66dd30b416ec6eaab02d722302. It is recommended to upgrade the affected component. The identifier VDB-217549 was assigned to this vulnerability.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`be.e_contract.dssp:dssp-client`	all versions	1.3.2

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for be.e_contract.dssp:dssp-client. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update be.e_contract.dssp:dssp-client to 1.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-77cc-w3wm-6whp is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-77cc-w3wm-6whp is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-77cc-w3wm-6whp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A vulnerability classified as problematic was found in e-Contract dssp up to 1.3.1. Affected by this vulnerability is the function `checkSignResponse` of the file `dssp-client/src/main/java/be/e_contract/dssp/client/SignResponseVerifier.java`. The manipulation leads to xml external entity reference. Upgrading to version 1.3.2 can address this issue. The name of the patch is ec4238349691ec66dd30b416ec6eaab02d722302. It is recommended to upgrade the affected component. The identifier VDB-217549 was assigned to this vulnerability.

O3 Security · Impact-Aware SCA

Is GHSA-77cc-w3wm-6whp in your dependencies?

O3 detects GHSA-77cc-w3wm-6whp across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works